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By TED-Ed
Published in 2014
Scientists have warned that as CO2 levels in the atmosphere rise an increase in Earth's temperature by even two degrees could lead to catastrophic effects across the world. But how can such a tiny, measurable change in one factor lead to huge, unpredictable changes elsewhere? Victor J. Donnay uses...
Grade Level   11 12
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2
Published in 2015
Designed for Science on a Sphere, this video explains fast and slow carbon cycling on Earth. A banana is an example of a fast, young carbon. A chunk of coal is an example of an old, slow carbon. Carbon dioxide and vegetation on land seen from space by satellites show the annual cycle: as plants grow...
Grade Level   9 10 11 12
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