A time-lapse animation has been released by NASA showing how the Arctic sea ice has changed over the past 30 years. Subscribe here: https://goo.gl/GHXtS1 Twitter: https://twitter.com/boomlive_in Facebook: https://www.facebook.com/BOOM-Live-234722873389359/ Visit Our Website: http://www.boomlive.in/
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A deeper look into one of global warming's negative effects on both the planet Earth and it's population: Melting Ice Caps and Glaciers. And what you can do to help... Please like, & comment below!!!
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WATCH 'The End Of The Arctic' https://youtu.be/CrRDtZp96jw SIGN THE PETITION: http://bit.ly/arcticasap Subscribe! http://bit.ly/asapsci Special thanks to Business Insider for their Ice Melting video, watch the full version here: https://youtu.be/VbiRNT_gWUQ GET THE ASAPSCIENCE BOOK: http://asapscience.com/book/ Created by: Mitchell Moffit and Gregory Brown Written by: Tyler Irving, Greg Brown and Mitchell Moffit Illustrated: by: Max Simmons Edited by: Sel Ghebrehiwot FOLLOW US! Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit Clickable: http://bit.ly/16F1jeC and http://bit.ly/15J7ube AsapINSTAGRAM: https://instagram.com/asapscience/ Snapchat: realasapscience Facebook: http://facebook.com/AsapSCIENCE Twitter: http://twitter.com/AsapSCIENCE Tumblr: http://asapscience.tumblr.com Vine: Search "AsapSCIENCE" on vine! SNAPCHAT US 'whalewatchmeplz' and 'pixelmitch' Created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz). Send us stuff! ASAPSCIENCE INC. P.O. Box 93, Toronto P Toronto, ON, M5S2S6 Photo Credits Corrientes-oceanicas Map By Dr. Michael Pidwirny (see http://www.physicalgeography.net) [Public domain], via Wikimedia Commons References / Further Reading: http://www.nature.com/nature/journal/v531/n7596/full/nature17145.html https://usclivar.org/amoc/organization/amoc-science-team http://www.nature.com/nclimate/journal/v5/n5/full/nclimate2554.html http://scied.ucar.edu/longcontent/melting-arctic-sea-ice-and-ocean-circulation https://coast.noaa.gov/digitalcoast/tools/slr http://blogs.scientificamerican.com/plugged-in/drown-your-town-what-does-your-hometown-look-like-with-sea-level-rise/ http://ngm.nationalgeographic.com/2013/09/rising-seas/if-ice-melted-map http://eau.sagepub.com/content/19/1/17.short?rss=1&ssource=mfc http://thewatchers.adorraeli.com/2013/01/29/rising-sea-level-will-displace-a-substantial-fraction-of-the-human-population/ http://www.npr.org/templates/story/story.php?storyId=9162438 http://www.gizmodo.com.au/2016/08/rising-sea-levels-threaten-over-a-trillion-dollars-worth-of-us-homes/ http://www.nature.com/nclimate/journal/v3/n9/full/nclimate1979.html http://scied.ucar.edu/longcontent/rising-sea-level https://www.acs.org/content/acs/en/climatescience/oceansicerocks/iceandclimate.html http://news.nationalgeographic.com/news/2011/11/111116-antarctica-mountains-mystery-ice-science-earth/ http://water.usgs.gov/edu/earthwherewater.html http://www.nasa.gov/feature/goddard/2016/climate-trends-continue-to-break-records
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Disappearing Arctic Sea Ice - Melting Polar Ice Cap | Earth Science Footage Video 🌟SPECIAL OFFERS: ► Free 30 day Audible Trial & Get 2 Free Audiobooks: https://amzn.to/2Iu08SE ...OR: 🌟 try Audiobooks.com 🎧for FREE! : http://affiliates.audiobooks.com/tracking/scripts/click.php?a_aid=5b8c26085f4b8 FROM NASA: "Arctic Sea Ice Max is 5th-Lowest on Record - This animation shows the seasonal change in the extent of the Arctic sea ice between March 1, 2012 and February 28, 2013. The annual cycle starts with the maximum extent reached on March 15, 2012. Every summer the Arctic ice cap melts down to its minimum extent before colder weather builds the ice cover back up. This new ice generated on an annual basis is called 'first-year' ice and is thinner than the older sea ice. The perennial ice is the portion of the ice cap that spans multiple years and represents its thickest component. On September 13, 2012, the sea ice minimum covered 3.439 million square kilometers, that is down by more than 3.571 million square kilometers from the high of 7.011 million square kilometers measured in 1980. The annual maximum extent for 2013 reached on February 28 reached an extent of 15.09 million square kilometers." - SUBSCRIBE to Bright Enlightenment http://www.youtube.com/BrightEnlightenment - JOIN the club: http://www.Facebook.com/BrightEnlightenment Video credit: NASA
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For 15 years, the GRACE mission has unlocked mysteries of how water moves around our planet. It gave us the first view of underground aquifers from space, and shows how fast polar ice sheets and mountain glaciers are melting. For more information about this mission, visit https://www.nasa.gov/mission_pages/Grace/overview/index.html and https://grace.jpl.nasa.gov/mission/grace/
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Over the past 100 years human activity has led to an increase in earth's average surface temperature. Scientists have measured the increase to be three-quarters of a degree celsius. The global warming is caused by an increase in greenhouse gases like carbon dioxide. The extra CO2 enters the atmosphere. Then the CO2 acts like glass in a greenhouse. The suns rays pass through the atmosphere then when reflected heat energy tries to escape it gets trapped making earth warmer. This process is called the greenhouse effect. Where is all of the extra CO2 coming from? Ever since the industrial revolution people have been using machines to produce goods. These machines burn fossil fuels like coal and oil. Burning fossil fuels produces greenhouse gases. Also, humans have been clearing forests using the wood to build homes. Trees naturally remove CO2 in the process of photosynthesis. What could happen if humans don't change? Coral reefs could die leading to a change in the food chain. The polar ice caps could start to melt. The massive amounts of water could make the sea level rise. The coastlines would flood and affect the lives of many. There are things you can do to help our planet. Use less electricity by turning off your lights. Setting the thermostat a few degrees cooler in the winter will save energy. Realize that the things you buy take energy to make and transport. Reuse shopping bags and look for products and packaging made of recycled materials. You can even plant a tree then let photosynthesis do the work for you. On earth day or any day you can be the face of change.
Просмотров: 5534 Mark Drollinger
Far above Earth's surface, the ozone layer helps to protect life from harmful ultraviolet radiation. Learn what CFCs are, how they have contributed to the ozone hole, and how the 1989 Montreal Protocol sought to put an end to ozone depletion. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Climate 101: Ozone Depletion | National Geographic https://youtu.be/aU6pxSNDPhs National Geographic https://www.youtube.com/natgeo
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VIDEO CREDIT: NOAA Since the 1980s, the amount of perennial ice in the Arctic has declined. This animation tracks the relative amount of ice of different ages from 1987 through early November 2015. The oldest ice is white; the youngest (seasonal) ice is dark blue. Key patterns are the export of ice from the Arctic through Fram Strait and the melting of old ice as it passes through the warm waters of the Beaufort Sea. In 1985, 20% of the Arctic ice pack was very old ice, but in March 2015, old ice only constituted 3% of the ice pack. Animation by NOAA Climate.gov team, based on research data provided by Mark Tschudi, CCAR, University of Colorado. Sea ice age is estimated by tracking of ice parcels using satellite imagery and drifting ocean buoys. References: Charctic Interactive Sea Ice Graph. National Snow and Ice Data Center. Accessed December 9, 2015. Perovich, D., W. Meier, M. Tschudi, S. Farrell, S. Gerland, and S. Hendricks. (2015). Chapter 4: Sea Ice. In Jeffries, M.O., Richter-Menge, J., Overland, J.E. (2015) Arctic Report Card: Update for 2015.
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Data may encapsulate the events of a single second or many years; it may span a small patch of Earth or entire systems of suns and planets. Visualizing data within its natural environment maximizes the potential for learning and discovery. Scientific visualization can clarify data’s relationships in time and space. In this visualization, the issue of the declining sea ice near the North Pole is set in its natural configuration. The visualization begins by showing the dynamic beauty of the Arctic sea ice as it responds to winds and ocean currents. Research into the behavior of the Arctic sea ice for the last 30 years has led to a deeper understanding of how this ice survives from year to year. In the animation that follows, age of the sea ice is visible, showing the younger ice in darker shades of blue and the oldest ice in brighter white. An analysis of the age of the Arctic sea ice indicates that it traditionally became older while circulating in the Beaufort Sea north of Alaska and was then primarily lost in the warmer regions along the eastern coast of Greenland. In recent years, however, warmer water in the Beaufort Sea, possibly from the Bering Strait, often melts away the sea ice in the summer before it can get older. This visual representation of the ice age clearly shows how the quantity of older and thicker ice has changed between 1984 and 2016. Visualizer: Cindy Starr (lead) For more information or to download this public domain video, go to https://svs.gsfc.nasa.gov/4616#24699
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ESA’s CryoSat and the Copernicus Sentinel-1 missions have been used to measure subtle changes in the elevation and flow of ice shelves that, in turn, reveals how huge canyons are forming underneath. Warm bottom ocean water is entering the cavity under Antarctica’s Dotson ice shelf and is stirred by Earth’s rotation. This is causing one side of the ice shelf to melt. The canyon, which has formed over 25 years, is now 200 m deep in places and the ice just above it is heavily crevassed, affecting the shelf’s future ability to buttress the ice on land. Please check out this video showing hidden ice canyons in the making.
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This visualization shows the change in the mass of the Antarctic Ice Sheet between January 2004 and June 2014 as measured by the pair of GRACE satellites. Blue values indicate an increase in the ice sheet mass while red shades indicate a decrease. A graph overlay shows the running total of the accumulated mass change in gigatons. GRACE, NASA's Gravity Recovery and Climate Experiment, consists of twin co-orbiting satellites that fly in a near polar orbit separated by a distance of 220 km. GRACE precisely measures the distance between the two spacecraft in order to make detailed measurements of the Earth's gravitational field. Since its launch in 2002, GRACE has provided a continuous record of changes in the mass of the Earth's ice sheets. For more information or to download this public domain video, go to https://svs.gsfc.nasa.gov/4376#22627.
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Antarctica is a vast and dynamic place, but radar technologies -- from World War II-era film to state-of-the-art miniaturized sensors -- are enabling scientists to observe and understand changes beneath the continent's ice in unprecedented detail. Join radio glaciologist Dustin Schroeder on a flight high above Antarctica and see how ice-penetrating radar is helping us learn about future sea level rise -- and what the melting ice will mean for us all. Check out more TED Talks: http://www.ted.com The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more. Follow TED on Twitter: http://www.twitter.com/TEDTalks Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: https://www.youtube.com/TED
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Watch 27 Years of 'Old' Arctic Ice Melt Away in Seconds. The total amount of Arctic sea ice is near record low for this time of year. The amount of ice isn't the only big story, though. A video from the National Oceanic and Atmospheric Administration shows a disturbing trend in the age of Arctic ice. Since 1988, Arctic sea ice is getting younger, and young ice is not a good thing. In 1988, ice that was at least 4 years old accounted 26 percent of the Arctic's sea ice. By 2013, ice that age was only 7 percent of all Arctic sea ice. The vanishing act is occurring because climate change is helping warm the ocean waters in parts of the Arctic. Those warmer temperatures are whittling away at older sea ice during the summer melt season. Replacing this thicker, harder old ice with young ice, which is generally thinner and melts more easily, is also contributing to the steep decline in summer sea ice extent and could trigger a feedback loop. That's because less ice means more dark ocean water is exposed to the sun, which absorbs more of the incoming sunlight than white ice. That means warmer waters, which could in turn mean even less old ice and ice cover with each passing year. climate change al gore global warming proof ice melting arctic
Просмотров: 98233 Our World - News about the Environment, Religion & Society
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Просмотров: 1884 Understanding Climate Change
http://www.propertyglasgow.biz/forest-scotland/buy-scottish-forest.html Earth is a cool planet to be living on. The investment opportunities for keeping it that way are more muscular than California Governor Arnold Schwarzenegger. Climate change from global warming because of the CO2 carbon dioxide greenhouse effect issue contains the inherent danger of melting polar ice caps with associated rising sea levels. The Copenhagen COP15 conference was a great opportunity at which global cooling, forests, carbon emissions, greenhouse gases, rain forests, trees and climate models could be discussed. In the years since the Kyoto protocol, our video on the important role carbon sequestration will have on the environment echoes the concerns of people like Al Gore and others concerned about ozone depletion.Global
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Earths Depletion of Resources brought to you by Alex Boyle www.BoyleGreenConsulting.com ignore tags: earths depletion of resources, depletion of resources, consuming resources, damaging the earth, earth regeneration, running out of resources, worlds population, grain supply, starvation, developing nations, greenhouse gases, greenhouse pollutants, ozone depleting gases, earths atmosphere, grow, replenish, sources are running out, amount of land, land, growing crops, urbanization, land clearing, deserts, forests, unsuitable climates, water, rapid population growth, waste water, rainfall, drought, energy, over reliance, fossil fuels fresh water, fossil fuels, biological resources, food production process, animal extinction, enhance food production, human behavior, impacthealth problems, health benefits, green, local environments, spread disease, green issue, toxic chemical leaks, water toxicity, environmental regulations, leaks, toxic poisoning, poisoning, human effluent, feces, water, contaminated, contaminated water, mass food production, mass production, additives, antibiotics, artificial hormones, pesticides, artificial fertilizer, quantities of crops Health problems, health benefits, local environments, green issues, green, urban areas, grouping, sources of pollution, sources of infection, world travel, medical advances, flu pandemic, communities, outbreaks, viruses, commuters, visitors, devastation, animals, birds, insects, wildlife, causing damage, natural ecosystems, environments, factory emissions, pollution of air, pollution of land, pollution of water, asthma, respiratory diseases, traffic volumehuman impact, green, environmental, sustainable, development, greenhouse gases, toxic waste, respitory infections, illnesses, medicines, plastics, textiles, detergents, paints, pesticides, by-products, air river streams, waste, manufacturing process, energy, fossil fuels, coal, alternative enrgy, solar, wind, hydro, gas emissions, health, waste disposal, landfill, incinerators, pollution, urban populations, economic growth, viruses ignore tags: Rewards of a Sustainable Lifestyle, Sustainable Lifestyle, Green lifestyle, green business, ethical business, health and development, health, future generations without sustainable development, ethical firms, less consumption, recycling, water bill, energy bill, growing, fruit and vegetables, car, public transport, greening home appliances, saving money, green profitability, boycotting, pollutions, regulations, walking, cycling, organic food, rising sea levels, polar icecaps, strong storms, floods, community damage increased flooding, mass produced food, lower quality foods, health implications, health problems, population damage, changing ecosystems, new viruses, higher levels of poverty, agricultural production, limations, povery increase "General Consumption" unreliable humans planet damage lifestyles goods cars "demand increase" "manufacturing process" energy "precious resources" oil coal "create energy" "waste genetated" atmosphere "damaging gases" floods hurricanes "melting of the polar icecaps" drought famine "natural disasters" Climate Change, changing, summer, science, problems, united nations, intergovernmental panel, global surface temperature, warming rate, apline, continental glaciers, norther hemisphere, lakes, rivers, ice, carbon dioxide, nitrous oxide, atmosphere, greenhouse gases, fossil fuels, cutting down trees, trees, photosynthesis, pollution, planting Climate Change, Effects of Climate Change, rainfall, weather related events, storms, floods, rising sea levels, big bush fires, pest infestations, infectious diseases, global temperatures, adapt, technology, forest fires, extreme heat, epidemics, tropical areas, drought, dry regions, coastal erosion, erosion, building collapses, intense rainfall, flash floods, monsoons, freak storms, arid areas
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Glaciers appear on almost every continent. However, they are rapidly melting due to the warming climate. Find out how glaciers form and other interesting facts about glaciers. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Climate 101: Glaciers | National Geographic https://youtu.be/WJgpDyP9ewQ National Geographic https://www.youtube.com/natgeo
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So you know about Freshwater and Saltwater now and you know that there's not that much Freshwater for us (and other life) to get to. So how do different animals deal with different amounts of water where they live? In this episode of Crash Course Kids, Sabrina talks about the adorable Nerpa and how they deal with rough conditions to live in Freshwater! This first series is based on 5th grade science. We're super excited and hope you enjoy Crash Course Kids! ///Standards Used in This Video/// 5-ESS2-2. Describe and graph the amounts and percentages of water and fresh water in various reservoirs to provide evidence about the distribution of water on Earth. [Assessment Boundary: Assessment is limited to oceans, lakes, rivers, glaciers, ground water, and polar ice caps, and does not include the atmosphere.] Want to find Crash Course elsewhere on the internet? Crash Course Main Channel: https://www.youtube.com/crashcourse Facebook - https://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/thecrashcourse Tumblr - http://thecrashcourse.tumblr.com Credits... Executive Producers: John & Hank Green Producer & Editor: Nicholas Jenkins Cinematographer & Director: Michael Aranda Host: Sabrina Cruz Script Supervisor: Mickie Halpern Writer: Kay Boatner Consultant: Shelby Alinsky Script Editor: Blake de Pastino Thought Cafe Team: Stephanie Bailis Cody Brown Suzanna Brusikiewicz Jonathan Corbiere Nick Counter Kelsey Heinrichs Jack Kenedy Corey MacDonald Tyler Sammy Nikkie Stinchcombe James Tuer Adam Winnik
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A weekly analysis of Arctic weather and climate change related trends. Areas of focus for this week include sea ice extent, climate change warming prevalence during polar night/winter, and regions likely to experience extreme warm temperatures during the coming ten days.
Просмотров: 3324 Robert Fanney
Wow, what a winter this is shaping up to be, huh? It seems like every other week we're getting hit with another "extreme cold" weather even on the northern half of this planet. These events are not only catching people off guard but animals too. From fish in Norway to dogs in Colorado, there are a lot of animals that are being frozen in place by cold weather. But do you think these means there is no such thing as global warming? Or do you think this is just a blip on our way to a hotter planet? Leave me you opinion in the comment section below... SOME INFO ABOUT POLAR VORTEXES FYI A polar vortex (also known as a polar cyclone, polar low, or a circumpolar whirl) is a persistent, large-scale cyclone located near either of a planet's geographical poles. On Earth, the polar vortices are located in the middle and upper troposphere and the stratosphere. They surround the polar highs and lie in the wake of the polar front. These cold-core low-pressure areas strengthen in the winter and weaken in the summer due to their reliance upon the temperature differential between the equator and the poles. They usually span less than 1,000 kilometers (620 miles) in which the air circulates in a counter-clockwise fashion (in the Northern Hemisphere). As with other cyclones, their rotation is caused by the Coriolis effect. The Arctic vortex in the Northern Hemisphere has two centers, one near Baffin Island and the other over northeast Siberia. The Antarctic vortex in the Southern Hemisphere tends to be located near the edge of the Ross ice shelf near 160 west longitude. When the polar vortex is strong, the Westerlies increase in strength. When the polar cyclone is weak, the general flow pattern across mid-latitudes buckles and significant cold outbreaks occur. Ozone depletion occurs within the polar vortex, particularly over the Southern Hemisphere, and reaches a maximum in the spring. SOME INFO ABOUT GLOBAL WARMING FYI Global warming refers to an unequivocal and continuing rise in the average temperature of Earth's climate system. Since 1971, 90% of the warming has occurred in the oceans. Despite the oceans' dominant role in energy storage, the term "global warming" is also used to refer to increases in average temperature of the air and sea at Earth's surface. Since the early 20th century, the global air and sea surface temperature has increased about 0.8 °C (1.4 °F), with about two-thirds of the increase occurring since 1980. Each of the last three decades has been successively warmer at the Earth's surface than any preceding decade since 1850.
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A scientific study says that the global warming target reached at the 2015 Paris climate agreement may not stop a domino effect from moving the Earth well beyond it, into catastrophic scenarios. A new study says that the global warming target set at the 2015 Paris climate agreement may be too little to stop catastrophic temperature rises. The goal of the accord is to keep the world's average temperature from rising 2 degrees Celsius above what it was before the industrial revolution. Even 2 degrees comes with its own dangers, but is widely considered a tipping point for the planet. We're currently at 1 degree Celsius and rising. The latest study was conducted jointly by the Australian National University, University of Copenhagen and other institutes. It says even if that goal was met, other processes that have already been worsened by climate change may carry the Earth up to 4 to 5 degrees higher. Processes such as melting polar ice and methane releasing from the sea floor. A rise of that magnitude would make new regions of the planet uninhabitable in time. And in the short term, scenes like the rare heatwave currently hitting Europe will become much more common. Along with the disasters that accompany it. It may all be a moot point though. The United Nations has previously warned the voluntary greenhouse gas reductions agreed in Paris may not be enough to reach the 2 degrees target anyway. Even if governments kept to their pledges. Donald Trump pulled the United States out of it altogether. Website: http://timesofoman.com Facebook: http://facebook.com/timesofoman Twitter: http://twitter.com/timesofoman
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With the rising temps recently this is causing the arctic to slowly lose its ice cover. Today's expert panel discusses what could happen if the retreating ice causes a methane eruption. Panel Participants: John Englander, Helen Caldicott, M.D., Seth B. Darling, Ph.D. Connect with The Real Truth About Health http://www.therealtruthabouthealth.com/ https://www.facebook.com/The-Real-Truth-About-Health-467500836655781/ https://twitter.com/RTAHealth Passionate believers in whole food plant based diets, no chemicals, minimal pharmaceutical drugs, no GMO's. Fighting to stop climate change and extinction.
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Mans addiction to fossil fuels has resulted in global warming. Pollution has destroyed the ozone layer heating the Earth unnaturally - melting of the polar ice sheet, raising sea levels and endangering wildlife. So how do you become part of the solution? Be environmentally responsible. Know about the alternative sources of energy. Act today and not tomorrow. Act now and make a difference. Understand the difference.
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Satellite-based passive microwave images of the sea ice have provided a reliable tool for continuously monitoring changes in the Arctic ice since 1979. Every summer the Arctic ice cap melts down to what scientists call its "minimum" before colder weather begins to cause ice cover to increase. This graph displays the area of the minimum sea ice coverage each year from 1979 through 2016. In 2016, the Arctic minimum sea ice covered an area of 3.57 million square kilometers. This visualization shows the expanse of the annual minimum Arctic sea ice for each year from 1979 through 2016 as derived from passive microwave data. A graph overlay shows the area in million square kilometers for each year's minimum day. The date shown in the upper right corner indicates the current year being displayed. Download the video: https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4573
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-- Created using PowToon -- Free sign up at http://www.powtoon.com/join -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
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Greenland ice melting: now supplying 25 percent of the total sea level rise. Ocean levels increased 50 percent faster in 2014 than in 1993, with the melting of the Greenland ice sheet now supplying 25 percent of the total sea level rise compared with just 5 percent ago 20, researchers said on Monday. The results add to the growing concern among scientists that the global watermark is rising faster than expected just a few years ago, with potentially devastating consequences. Hundreds of millions of people around the world live in low-lying deltas that are vulnerable, especially when combined with rising sea levels due to depleted groundwater, or lack of soil sediment Braked by the prey. Major coastal cities are also threatened, while some small island states are already making plans for the day when their drowning nations will no longer be habitable. This result is important because the Intergovernmental Panel on Climate Change (IPCC) the UN's scientific advisory body makes a very conservative projection of total sea-level rise by the end of the century, from 60 to 90 cm 24 to 35 inches, Peter Wadhams , A professor of ocean physics at Oxford University, who did not participate in the research. That estimate, he added, is assumed that the rate at which sea levels rise will remain constant.
Просмотров: 708 Science and more
The Arctic may be free of ice for the first time in 10,000 years. Wadhams shows how sea ice is the 'canary in the mine' of planetary climate change. He describes how it forms and the vital role it plays in reflecting solar heat back into space and providing an 'air conditioning' system for the planet. Prof. Peter Wadhams is the UK’s most experienced sea ice scientist, with 48 years of research on sea ice and ocean processes in the Arctic and the Antarctic. This has focused on expeditions and measurements in the field, which has involved more than 50 expeditions to both polar regions, working from ice camps, icebreakers, aircraft, and, uniquely, Royal Navy submarines (6 submerged voyages to the North Pole ). His research group in Cambridge has been the only UK group with the capacity to carry out fieldwork on sea ice. He is Emeritus Professor of Ocean Physics and is the author of numerous publications on dynamics and thermodynamics of sea ice, sea ice thickness, waves in ice, icebergs, ocean convection and kindred topics. The current main topics of research in the group are sea ice properties, dynamics, and distributions in thickness and concentration. He is also a pioneer in the use of AUVs (autonomous underwater vehicles) under sea ice, using multibeam sonar to map bottom features, work which he has also been done from UK nuclear submarines. He began his research career at the Scott Polar Research Institute, Cambridge University, where he rose to become Director. He moved to DAMTP in 2001. He has also held visiting professorships in Tokyo (National Institute of Polar Research), Monterey (US Naval Postgraduate School), Seattle (University of Washington) and La Jolla (Green Scholar at Scripps Institution of Oceanography). He was the coordinator of several European Union Arctic flagship projects (ESOP, GreenICE, CONVECTION, and others) and is currently on the Steering Committee of the EU ICE-ARC project as well as a major US Office of Naval Research initiative in the Arctic. He served eight years on the Scientific Committee of the European Environment Agency and had served on panels of the National Academy of Sciences (USA). In 1990 he received the Italgas Prize for Environmental Sciences, and he has also been awarded the Polar Medal (UK) (1987) and the W.S. Bruce Prize of the Royal Society of Edinburgh. As well as being Professor at Cambridge he is an Associate Professor at the Laboratoire d’Océanographie de Villefranche, run by Université Pierre et Marie Curie, Paris, and is a Professor at the Università Politecnica Delle Marche, Ancona. He is a Member of the Finnish Academy and is a Fellow of the Royal Geographical Society. His most recent book, “A Farewell to Ice”, documents the ways in which the retreat of sea ice in the Arctic generates feedbacks which impact the entire global climate system, accelerating the rate of warming, the rate of sea level rise, the emission of methane from the offshore, and the occurrence of weather extremes affecting food production. He contends that catastrophic consequences cannot be avoided without making an all-out effort to develop ways of directly capturing carbon dioxide out of the atmosphere. Connect with The Real Truth About Health http://www.therealtruthabouthealth.com/ https://www.facebook.com/The-Real-Truth-About-Health-467500836655781/ https://www.instagram.com/therealtruthabouthealth/ https://twitter.com/RTAHealth Passionate believers in whole food plant based diets, no chemicals, minimal pharmaceutical drugs, no GMO's. Fighting to stop climate change and extinction.
Просмотров: 6972 The Real Truth About Health
Climate change approaches ever faster. The 1972 study “The Limits of Growth” showed that we would eventually reach a breaking point. In 1990 the UN Advisory on Greenhouse Gases warned that just 1 degree Celsius of warming could produce "rapid, unpredictable and non-linear responses that could lead to extensive ecosystem damage.” Study after study indicates that the collapse of ecosystems comes ever closer. In 2016 the World Meteorological Organization published a dire analysis of the state of the environment. Environmental break down accelerates worldwide, including insectaggedon, losses of arable land, and the sixth mass extinction. The Arctic system becomes ever more precarious. The rapid melting of polar ice reduces the cooling effect and adds large amounts of fresh water to the North Atlantic. In 2016 surface warming had reduced Arctic sea ice alarmingly. The weakened Gulf Stream looks to be headed for a collapse with serious consequences. We have found ourselves severely unprepared. After the United States withdrew from the Paris Agreement, investments in the dirtiest fossil fuels have skyrocketed. The U.S. administration continues to reverse environmental regulations. Environmental destruction reflects a systemic crisis at the core of our political economy. There is only one way to avoid climate catastrophe. Please visit the site – http://agileandbeyond.co – for more information. #climatechange #insectaggedon #sixthmassextinction #greenhousegases #seaice #climatecatastrophe #newnormal #koch #disinformation #propaganda #publicrelations #destruction #growth #breakingpoint #shell #bp #britishpetroleum #baseline #1750 #fossilfuel #social #political #economic #opinion #renewables #wind #solar #biomass #greenhouseeffect #carbondioxide #emissions #nonlinear #selfreinforcing #feedbackloop #ecosystem #damage #habitat #survival #overshoot #ecologicallimits #consumersociety #civilization #globaldimming #methane #arcticpermafrost #wmo #worldmeteorologicalorganization #tippingpoint #oilcompanies #breakdown #indonesia #palmoil #plantations #beef #cattle #deforestation #methane #soil #depletion #arable #harvests #naturalresources #regenerate #insectageddon #rainforests #mangroves #soil #aquifers #degradation #earth #atmosphere #oceans #sixthmassextinction #vertebrates #biological #annihilation #threat #humanity #mass #extinction #biodiversity #assault #arcticsystem #precarious #worstcase #scenario #nonlinearfactor #feedback #melting #polarice #cooling #solarrays #seaiceextent #arctic #abrupt #globaltemperature #gulfstream #atlanticocean #amoc #collapse #oceancurrent #winters #summers #westerneurope #sealevel #floods #droughts #coastalcities #coastalflooding #arcticsoil #carbontimebomb #permafrost #seafloor #climatefeedbackloop #northpole #antarctic #arcticrussia #subarctic #extremeweather #soilquality #airquality #habitatloss #foodshortage #watershortage #economicinjustice #populationincrease #maltus #rapidindustrialization #china #dilemma #livingstandard #india #noamchomsky #republicanparty #organization #environmentalcatastrophe #anthropocene #republicancongress #paris #climatesafetyzone #unitedstates #stephenhawking #venus #sulfuricacid #systemicshift #systemiccrisis #negativetrends #incompatible #just #sustainable #equitable #philotimo #economicsystem #ecologicalovershoot #consensus #nature #design #implications #corporate #capitalism #grossdomesticproduct #gdp #gnp #nationalincome #bottomline #political #economic #system #unstable #system #downturn #economic #crash #great #depression#recession #catastrophe #neoliberal #capitalism #community #decline #ecological #protections #legislation #stability #environmental #rollbacks #sustainable #us #election #cabinet #appointments #trump #coalash #pollution #powerplants #manufacturers #competitive #costs #administration #destroy #environmentalprotectionagency #epa #cleanpowerplan #motorvehicles #publiclands #sequoia #chlorpyrifos #pesticide #impairment #cognitive #behavioral #climatedenial #rightpopulism #inequality #destruction #decisive #flaws #politicaleconomy #harmful #society #ecosystems #logical #competitive #selfinterest #hyperindividualism #stigmatize #compassion #solidarity #problems #undermine #human #natural #neoliberal #ideology #collective #public #profit #dump #trash #waste #refuse #negative #externalities #unregulated #tina #reagan #thatcher #hayek #responsible #ethos #neoliberalism #failure #imagination #radical #transformation #statusquo #feudalism #virulent #economic #ideology #power #politics #atomized #massmovement
Просмотров: 433 Dan Feldman
Environmental problems Introduction : Our Environment is changing. We can not deny that. However, we have to be aware of the problems that our environment was having, most of the environmental problems are causes of humans,and some of the environmental problems are because of natural disasters, warming, climate change, pollution and cooling periods. Pollution: Pollution of soil, air and water requires hundreds of years to compensate. Exhaust plants and cars are the main cause of pollution, plastic and heavy metals are toxins responsible for contamination. While water pollution is caused by oil spill, acid rain, runoff in urban areas. Air pollution causes various gasses and toxins released by industries and factories and the burning of fossil fuels; soil pollution is the primary cause of industrial waste that deprives the soil of basic foodstuffs. Global Warming: Climate change is indicative of global warming, and its result is human practices such as greenhouse gas emissions. Global warming leads to rising ocean temperatures and the earth's surface, causing sea level rise and the melting of polar ice caps as well as abnormal patterns of precipitation such as sudden flooding, desertification, and excessive snow Natural Resource Depletion: Exhaustion of natural resources poses other environmental problems. The consumption of fossil fuels leads to the emission of greenhouse gases responsible for climate change. Globally, people are making efforts to switch to renewable energy sources such as solar, wind, biogas and geothermal. The cost of installing and maintaining infrastructure has declined in recent years . Climate Change: Climate change is another environmental problem in the past decades. This is due to the rise in global warming caused by atmospheric warming due to the burning of fuel and harmful gasses by industries. Climate change also has various but not limited adverse effects Polar ice melting, new diseases, season change, frequent floods, and change in the general weather scenario. Environmental issues in the use: In the UAE are the reason for the exploitation of natural resources, rapid population growth, and high energy demand. The continued warming of global warming contributes to water scarcity, drought, sea level rise and drought in the United Arab Emirates. The countryside in the United Arab Emirates, characterized by its great arid lands, rare rainfall, high temperatures, long-term droughts . This precondition is very vulnerable to the effects of climate change and contributes to worsening water scarcity, quality and water pollution the solution of Environmental problems: Sustainability is key to preventing the impact of environmental issues. There is scientific evidence that mankind is living unsustainably and that everyone needs an unprecedented effort to restore the human use of natural resources to sustainable borders. For people to live naturally, natural resources of the Earth must be used at a rate that can be renewed and reduce global warming. Environmental concerns have led to the formation of Green parties and political parties seeking to address environmental issues. Initially, these were formed in Australia, New Zealand, and Germany but are now present in many other countries
Просмотров: 269 Ibrahim Alhameli
Morgan Freeman narrates this hopeful, must-watch short film about the need to solve the climate change problem. Video by the United Nations. Subscribe to TDC for the most complete coverage of climate change on YouTube: https://www.youtube.com/TheDailyConve... Like our page on Facebook http://www.facebook.com/thedailyconve... Join us on Google+ https://plus.google.com/1001349258045... Follow us on Twitter http://www.twitter.com/thedailyconvo Video courtesy of the United Nations.
Просмотров: 416695 The Daily Conversation
Why Do People Laugh at Deniers of Human-Caused Climate Change? Replying to this video: http://www.youtube.com/watch?v=JKh3Ww_Q4-M Human-caused climate change has caused and is causing extreme warm and extreme cold events: http://www.sciencepoles.org/articles/article_detail/jennifer_francis_is_a_changing_arctic_affecting_weather_in_the_mid_latitude/0/ Antarctic is losing ice mass, and at an accelerating rate: Measurements of Time-Variable Gravity Show Mass Loss in Antarctica http://www.sciencemag.org/content/311/5768/1754.abstract Accelerated Antarctic ice loss from satellite gravity measurements http://www.nature.com/ngeo/journal/v2/n12/full/ngeo694.html Antarctic sea ice extent however is increasing: Non-annular atmospheric circulation change induced by stratospheric ozone depletion and its role in the recent increase of Antarctic sea ice extent http://onlinelibrary.wiley.com/doi/10.1029/2009GL037524/abstract Interpretation of Recent Southern Hemisphere Climate Change http://www.sciencemag.org/content/296/5569/895.abstract Simulation of Recent Southern Hemisphere Climate Change http://www.sciencemag.org/content/302/5643/273.abstract Tiffany Jo Allen: http://www.tiffanyjoallen.com/
Просмотров: 2529 Desertphile
On 3 March, Populatin Matters' annual conference for 2018 took place - Climate Change and Us: more feet, more heat? A panel of experts gathered to discuss the relationship between global warming and population. This is Video 2: ice scientist Prof Peter Wadhams ScD discussing arctic feedback loops and food production.
Просмотров: 2601 Population Matters
On the Kangerdlugssuaq Glacier -- one of Greenland's largest ice fields -- scientists measure the movement of the ice sheet as it transports frozen water to the ocean. They discover that the speed of the glacier's march to the sea has tripled in just ten years. Alarm bells sound because at the current melt rate, within a few decades rising seas will have a profound effect on the low-lying countries of the world. Once considered an inexhaustible source of food, the oceans are now in danger of being significantly depleted. Matt Damon hosts "The State of the Planet's Oceans" as award-winning filmmakers Hal and Marilyn Weiner investigate the health and sustainability of the world's oceans and the issues affecting marine preserves, fisheries, and coastal ecosystems worldwide. * Learn more at: http://www.pbs.org/journeytoplanetearth -- OR -- http://www.screenscope.com ** Join us on Facebook at: http://www.facebook.com/JourneytoPlanetEarth *** Follow us on Twitter at: http://twitter.com/J2PlanetEarth
Просмотров: 6559 Journey to Planet Earth
Fukushima leak is not only warming up the Pacific Ocean its also causing Ice in Antarctica and the Ice in the North Pole to Melt!?
Просмотров: 84 ZGoldenReport
A mini documentary film by Yorkshire Wildlife Park Foundation & Polar Bears International about the devastating effects man-made climate change is having on Polar Bears and our our planets environment. We discover its not too late to help stop a climate catastrophe if we all play our part. See www.YWPFoundation.com for ideas of how you can help. This includes signing up to our 18 degrees C or below campaign. This initiative will help you save money on your utility bills and protect Polar bears in the wild. Yorkshire Wildlife Park Foundation supports the vital work of Polar Bears International by protecting the arctic sea ice habitat polar bears rely on to survive. Text Donate 'BEAR46 £1' to 70070 and help support YWPF & PBI carry out their vital conservation work.
Просмотров: 42350 Yorkshire Wildlife Park
Global ice levels are seen in rapid decline in this animation from NASA's Gravity Recovery and Climate Experiment (GRACE). Add TDC to your circles on Google+ https://plus.google.com/100134925804523235350/posts Join the conversation on Facebook http://www.facebook.com/thedailyconversation Follow The Daily Conversation on Twitter http://www.twitter.com/thedailyconvo Music: http://upload.wikimedia.org/wikipedia/commons/5/5c/Frederic_Chopin_-_Nocturne_Eb_major_Opus_9%2C_number_2.ogg
Просмотров: 2054 The Daily Conversation
The World/Earth Is Changing - Global Warming - Cinematic Trailer (NEW HD 2018) After Effects - Cinematic Titles 2018 - The World Is Changing - Global Warming - Cinematic Trailer/Titles 2018 The World Is Changing - Global Warming - Cinematic Trailer (NEW HD 2018) - A Sign of Global Warming, A Sign of Extinction. Climate change: How do we know? The Earth's climate has changed throughout history. Earth is not the same what we knew over the 650 000 years ago. A lot of Changes have happened and are happening on Earth which shows the Earth is changing rapidly. This video shows what are the 9 Topics which are changing the Earth or World. PiXEL Entertaiment PiXEL Studio Presents Cinematic Trailer The World Is Changing How Many of Us Know? It's A Sign of Global Warming It's A Sign of Extinction PiXEL ENTERTAINMENT TM PiXEL Studio Presents PiXEL STUDIOS .Inc Contents: 1.Temperatures Are Rising Globally 2.Oceans Are Getting Warmer Every Year 3.Ice Sheets Are Shrinking Every Year 4.Glaciers Are Retreating Every Year 5.Snow Covers Are Decreasing Every Year 6.Rise In Sea level Every Year 7.Arctic Sea Ice Declining Every Year 8.Increase In Extreme Events Every Year 9.Increase In Ocean Acidification Every Year It's Been 650,000 Years The Earth Has Changed & Is Changing Rapidly When Human Mankind Taken Over The Earth The Earth Is Never The Same Before Carbon-Di-Oxide Levels In The Air Are At Their Highest in 650,000 Years 16 of the 17 Warmest Years On Record Since 2001 In 2012, Arctic Summer Sea Ice Shrank To The Lowest Extent On Record Satellite Datas Shows That Earth's Polar Ice Sheets Are Losing Mass Global Average Sea Level Has Risen Nearly 7" (178 mm) Over The Past 100 Years Droughts, Temperature Rise, Heat Gases, Climate Changes, Heat Waves, Hurricanes, Tsunamis, Cyclones, Seal Level Rise, Arctic Ice Depletion, Earthquakes, Land Slides, Heavy Rains, Floods, Volcanic Erruptions, Deforestation, Shrinking Glaciers, Wild Fires and Storms, etc. Music: Death_Match Artist: Bird Creek Genre: Cinematic | Dramatic Source: https://www.youtube.com/audiolibrary/music Downloaded From: Youtube Audio Library Audio / Song: Earthy_Crust By Jingle Punks Genre: Cinematic|Dramatic Source: https://www.youtube.com/audiolibrary/music Downloaded From: Youtube Audio Library Music: Into_the_Wormhole_Sting Artist: Jingle Punks Genre: Cinematic | Dramatic Source: https://www.youtube.com/audiolibrary/music Downloaded From: Youtube Audio Library Sound Effects: Keyboard_Typing_Fast Genre: Office Source: https://www.youtube.com/audiolibrary/music Downloaded From: Youtube Audio Library Music: March_to_Victory Artist: Silent Partner Genre: Cinematic | Inspirational Source: https://www.youtube.com/audiolibrary/music Downloaded From: Youtube Audio Library Tags: The World Is Changing Fast The World Is Changing Rapidly The World Is Changing For The Worst The World Is Changing Quotes The World Is Changing Rapidly 2018 The World Is Changing Rapidly 2017 The World Is Changing 2017 The World Is Changing 2018 The World Is Changing And We Must Change With It The World Is Changing, And Changing Fast The World Is About To Change Even Faster Our World Is Changing At 10x Speed 2018 5 Reasons The Future Is Now —Why The World Is Changing 2018 Why Is The World Changing So Fast? 8 Ways/9 Ways/10 Ways The World Will Change By 2050 The World Changing Ideas of 2018 The Earth Is Changing The Earth's Vibration Is Changing We know that Earth is changing in dramatic ways on a daily basis The World Is Changing Video THE WORLD IS CHANGING SO FAST - WE ARE RUNNING OUT OF TIME - 2018 The world is changing... 2018 Our World is Changing: SHOCKING EVENTS (2017-2018) 5 Future Technologies That Will Change The World 2018 15 Dramatic Changes on Earth Revealed by NASA 2018 20 Dramatic Changes on Earth Revealed by NASA 2018 10 Dramatic Changes on Earth Revealed by NASA 2018 Earth’s Axis Has Shifted - And The Sky Has Changed Images of Our Changing World Earth 100 Million Years From Now 2018 Earth's Climate Changes 2018 Earth's Climate Change Evidences 2018 After Effects Cinematic Intro Video After Effects Cinematic YouTube Intro Video cinematic after effects template free cinematic after effects template free download cinematic aftter effects tutorial cinematic aftter effects intros cinematic aftter effects intro template cinematic afttermovie cinematic aftter effects free Create a Cinematic Look with After Effects Tricks 2018 Cinematic Film Intro in After Effects - After Effects Tutorial - No Third Party Plugin 2018 AFTER EFFECTS TUTORIAL - Cinematic Titles 2018 After Effects Tutorial: Cinematic Title Animation in After Effects - No Plugin | Free Download How To Create an Amazing Cinematic Photo Slideshow in After Effects Tutorial After Effects Template - The Cinematic Trailer Teaser After Effects Tutorial: Particles Text Effects (simple way) 2018 After Effects Tutorial: Cinematic Title Animation in After Effects - No Plugin | Free Download
Просмотров: 353 PiXEL Studios
Satellite-based passive microwave images of the sea ice have provided a reliable tool for continuously monitoring changes in the Arctic ice since 1979. Every summer the Arctic ice cap melts down to what scientists call its 'minimum' before colder weather begins to cause ice cover to increase. This visualization shows the expanse of the annual minimum Arctic sea ice for each year from 1979 through 2015. A semi-transparent graph overlay shows the area in millions of square kilometers for each year's minimum day. The date shown in the upper right corner indicates the current year being displayed. For more information or to download this public domain video, go to https://svs.gsfc.nasa.gov/4435#32744.
Просмотров: 1386 NASA Scientific Visualization Studio
Another so called global warming report came out this week just ahead of the G-20 summit and it as all others before it is based on outdated data from 2003-2007 . With not a word on the historic solar minimum or the conditions that have changed since 2007 .Antarctic sea ice had a record growth in 2008 and is well above normal levels going into spring 2009 . There is over 15.737 miles sq. km of sea ice , .674 above the average 15.063 as of September 21 , 2009 .. Because of abundant snowfall we are actually getting to see glaciation take hold . We have seen for the first time in years the ice shelves begin to grow once more. In this video you can even see some of the more brittle new areas give way. But there is in fact a net increase in many of the ice sheets . Only the Western shelf has seen any decline and the growth on the other shelves more than makes up for the loss on the western side of the continent. . Simply put our leaders are either ill informed , Ignorant or have an agenda .There will not come a rise in water from the melting of this ice but the sea level will rise because of this growing ice . Mr. Moon , Mr. President Global Warming is over . Because of the rapidly changing state of the Sun the Earth is entering a period of global cooling . Think about all this for just one minute. The Sun is in a state of historical quiet . 1. Cyclone intnesity is at 30 year lows . Ove the last 2 years this number has basically collapsed 2. 2008 was the coolest year since 2000 . 2009 looks to end up cooler than normal ~ Overall Global temperatures have continued to fall 3. 2008 there was over 250 blank spotless days on the sun . 2009 will surpass this number 3.a . Any sunspots that are able to form are often short lived 3.b. Magnetism remains at multi century lows. Magnetic fileds that errupt fluctuate and are superficial 4 .The ozone hole is beginning to heal despite using chemicals that cause more depletion , there is little Solar Forcing in the minimum 5. The Ice Caps and shelves have made a drastic recovery and are rebounding 5.a Antarctic sea ice is .674 above the average . 2008 was also a year of above average growth 5.b. Arctic ice has rebounded to levels not seen since 2005 .The water is cooler and allowing quicker and earlier development 6 . Torrential rainfalls in record amounts around the world because the cooling atmosphere , Another sign of this has been the persistent "Noctilucent" clouds at lower latitudes 2 month observation of - Ross Ice Shelf - Ronne Ice Shelf - Larsen Ice Shelf Images - Nascent Iceberg Images - B-15A Iceberg Images
Просмотров: 5468 Chris2191970
Sources: Adams, R.J. (2007). Our threatened polar ice caps. Awesome Library. Retrieved from http://www.awesomelibrary.org/polar-ice.html Environment Defense Fund (EDF). (2011). Polar bear: arctic icon at risk. Retrieved from http://www.edf.org/page.cfm?tagID=43083&source=ggad&gclid=CKugzcP48acCFYdg2 godj1FWbg Glenbrook North Zero Waste Blog. (2010, April 30). Pesticides in our environment. Retrieved from http://glenbrookzerowaste.wordpress.com/2010/04/30/pesticides-in-our- environment/ Keep America Beautiful Inc. (2006). Litter prevention. Retrieved from http://www.kab.org/site/PageServer?pagename=focus_litter_prevention Mann, K. (2011). Fish kills. Pollution issues. Retrieved from http://www.pollutionissues.com/Ec-Fi/Fish-Kills.html McNamee, G. (2008). Plastic bags and animals. In Encyclopedia Britannica. Retrieved from http://advocacy.britannica.com/blog/advocacy/2008/12/plastic-bags-and-animals-making- the-wild-safe-for-wildlife/ National Geopraphic. (1996-2011). Acid rain. Retrieved from http://environment.nationalgeographic.com/environment/global-warming/acid-rain- overview/ Novi Meadow Elementary. (2002). Ocean pollution. Retrieved from http://library.thinkquest.org/26026/Environmental_Problems/water_pollution_- _effects.html Putatunda, R. (2000-2010). Land pollution. Retrieved from http://www.buzzle.com/articles/land- pollution.html Socha, T. (2007). Air pollution causes and effects. Retrieved from http://healthandenergy.com/air_pollution_causes.htm Sparling, B. (2011, May 30). The ozone layer. NAS. Retrieved from http://www.nas.nasa.gov/About/Education/Ozone/ozonelayer.html Union of Concerned Scientists. (2009). Global warming science and impact. Retrieved from http://www.ucsusa.org/global_warming/science_and_impacts/science/global-warming- faq.html http://www.actionbioscience.org/ http://earthjustice.org/irreplaceable/polar_bear http://www.epa.gov/ http://www.envirolink.org/ http://www.globalstewards.org/issues.htm#allthree http://www.greenfootsteps.com/index.html http://www.green-networld.com/facts/facts_fr.html http://nonplasticearth.org/blog/tag/animals-eating-garbage/ http://www.nwf.org/Global-Warming.aspx
Просмотров: 431 Leanne Saldana
Glacier Facts for Kids Glaciers Glaciers are large masses of densely packed ice that are constantly moving due to their surface slope, pressure and gravitational forces. A glacier forms over many years when snow and ice builds up faster than it is removed. The removal of snow and ice is called ablation and includes processes such as melting and evaporation. A névé is the name for an area where a glacier has formed. This is usually in bowl-shaped areas between mountains where snow collects readily and compresses and compacts due to the weight of more snow falling on top. As individual snow flakes are crushed by this immense weight pressure, air is squeezed from the snow turning it into a very dense glacial ice. Glacial ice will continue to fill the névé until eventually a geological weakening or gap between mountains means the ice mass will start to move down a slope surface. As glaciers move they erode the terrain under them using two main processes. Plucking, whereby bedrock rock is softened and levered out by subglacial water constantly re-freezing (expanding) within it, the sediment then becomes part of the glacier's cargo. Abrasion occurs when the ice and now rock too slides over the bedrock essentially smoothing and polishing it like sandpaper on wood. Researchers are able to determine the direction of historical glaciers by examining bedrock scrapings such as glacial striations (long carved scratches caused by large boulders moving with the glacier) and chatter marks (crescent-shaped lines caused by boulders being constantly dragged and released). Studies of glacial deposits also help show where historical glaciers were and how they moved. Linear mounds of glacial sediment called moraines are formed and left by the deposition of material from a glacier. While drumlins are teardrop shaped groups of hills also containing left behind sediment deposits. Usually mountain valleys are “V” shaped. Glaciers deepen, smooth and widen the valleys into a "U" shape. Within these glacial valleys, depressions and deposits left behind are filled by water to create lakes and fjords. The study of glaciers and their related processes is called glaciology. The study of glaciers is very important for scientists to keep track of unique variations in the Earth's climate (such as global warming) as glaciers are very sensitive to climatic changes. Types of glaciers include: Alpine glaciers (or mountain glaciers) located in mountain valleys. Ice caps (or ice fields) are less than 50,000 km² (20,000 mi²) in size and sit on top of mountains. While ice sheets (or continental glaciers) are usually found at the poles and are larger than 50,000km². Around 99% of glacial ice on Earth is contained within the polar ice sheets. Glaciers can be found in mountain ranges on every continent except Australia. Glacier ice stores approximately 75% of the Earth's entire freshwater supply Around 10% of the Earth's land surface is covered by various types of glaciers. The word "glacier" comes from the French language and the name is derived from the Latin word glacies meaning "ice"
Просмотров: 23 Baby Bee Educational Kids Channel
ENVIRONMENTAL ISSUE: Environmental issues are harmful effects of human activity on the biophysical environment. Environmentalism, a social andenvironmental movement, addresses environmental issues through advocacy, education and activism. GLOBAL WARMING: Climate changes like global warming is the result of human practices like emission of Greenhouse gases. Global warming leads to rising temperatures of the oceans and the earth’ surface causing melting of polar ice caps, rise in sea levels and also unnatural patterns of precipitation such as flash floods, excessive snow or desertification. MUSIC: Come over- Clean Bandit Feat. Stylo G https://www.youtube.com/watch?v=aaXDzh_zoqM
Просмотров: 242 Andrea Herrera