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\nWhat Is The Natural Greenhouse Effect? | Environmental Chemistry | Chemistry | FuseSchool\n

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\nLearn the basics about the natural greenhouse effect. The atmosphere helps to keep our planet warm by making it harder for the energy we get from the sun to escape back to the universe. Our atmosphere is held to the earth by the force of...\nLearn the basics about the natural greenhouse effect. The atmosphere helps to keep our planet warm by making it harder for the energy we get from the sun to escape back to the universe. Our atmosphere is held to the earth by the force of gravity. Visible light gets straight through our transparent atmosphere and is partly absorbed by the earth which gets hot. Hot things radiate infra red rays. Although visible light got through the atmosphere, the infra red radiation coming from the earth finds it more difficult to get through. So the atmosphere acts a bit like glass letting visible light through to warm the earth but some of the heat (or infra-red) radiation now given off gets absorbed by certain gases in the atmosphere, called greenhouse gases. In this way the earth is kept warm and we say there is a natural greenhouse effect. The two natural gases that absorb infra-red are water vapour and carbon dioxide. Clouds, made of water droplets, insulate night skies in the winter, but without the clouds the heat gets away and frost forms. Before the world became industrialised by burning fossil fuels such as coal oil and natural gas, the carbon dioxide concentration in the atmosphere was about 0.028% tiny compared with O=O at 21% and NN at 78%, but enough to keep us warm. Without this natural blanket of insulating gas the earth would be too cold to support life as we know it. SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind FuseSchool. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here Twitter Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us Friend us This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: info@fuseschool.org\n
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Grade
12th - Higher Ed
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All Subjects
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Instructional Videos
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Source:
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Date
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2016
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