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There are 7 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 10 - 18
1389 Views:
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A three minute review of the causes of global warming. Good images and graphics. Shows evidence of warming in terms of temperatures and ice melting shown. Run time 03:03.
October 12, 2010 at 07:49 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
948 Views:
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Is Antarctica headed for a catastrophic meltdown? New evidence of ancient climate change may hold clues. (52 minutes, 51 seconds)
January 13, 2011 at 12:09 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
1279 Views:
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Methane, water vapour, nitrous oxide and ozone are the green houses
gases, which exist in the earth’s atmosphere. They absorb thermal
radiations that are breathed out by the earth’s surface and reflect it
back to the earth, thereby serving as a... blanket preventing the earth
from heat loss and keeping temperatures constant and perfect for animals
to live, and plants to grow.
For years now, rising temperatures have been a particularly hot topic
among environmentalists. The reason? An increase in the emission of
green houses gases because of industrialization, burning of fossil
fuels, and use of vehicles that run on petroleum and its products. This
has caused an increase in the earth’s temperature and is leading to
phenomena like local climate change, freak occurrences like tsunamis and
rising water levels.
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June 9, 2010 at 12:32 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
511 Views:
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This animation describes the carbon cycle and how it is affected by human activity. (03:04)
May 29, 2012 at 02:29 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
485 Views:
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This video explains the role of carbon dioxide in the Greenhouse Effect. Carbon dioxide is one of the gasses that absorbs the earth’s heat. This video provides a detailed explanation of the Greenhouse Effect as a vital process that sustains life on... Earth. It also presents an experiment that shows how carbon dioxide absorbs thermal radiation, mimicking the Greenhouse Effect. (3:33)
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May 26, 2012 at 10:51 AM
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Not Right For WatchKnowLearn
Ages: 9 - 15
1225 Views:
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This educational video explains the greenhouse effect. It describes the process how the earth’s atmosphere captures the sun’s heat to maintains the earth’s temperature. However, the emission of green house gases from industries and cars have thickene...d our atmosphere and therefore earth’s atmosphere captures more heat than required, resulting in global warming. This effect is known as the green house effect. There is no sound in the video.
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June 9, 2010 at 12:43 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
922 Views:
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Chevron is working to reduce greenhouse gas (GHG) emissions while expanding its energy supply portfolio to meet the world's energy needs. This is essentially the viewpoint of the company. Very little content and the explanations are vague and lack da...ta. The lowest rated video on the site.
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November 28, 2010 at 06:49 PM
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