1
By TED-Ed
Published in 2013
Why do some regions experience full-time heat while others are reckoning with frigid temperatures and snow? And why are the seasons reversed in the two hemispheres? Rebecca Kaplan explains how the shape of the Earth's orbit around the Sun and the Earth's tilt on its axis affect the amount of...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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2
By TED-Ed
Published in 2014
As the Earth’s surface temperature gradually rises, it has become vital for us to predict the rate of this increase with as much precision as possible. In order to do that, scientists need to understand more about aerosols and clouds. Jasper Kirkby details an experiment at CERN that aims to do...
Grade Level   6 7 8 9 10 11 12
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3
By TED-Ed
Published in 2015
"The Arctic may seem like a frozen and desolate environment here nothing ever changes. But the climate of this unique and remote region can be both an early indicator of the climate of the rest of the Earth and a driver for weather patterns across the globe. William Chapman explains why scientists...
Grade Level   K 1 2 3 4 5 6 7 8 9 10 11 12
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4
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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5
By TED-Ed
Published in 2014
There's a game of Tetris happening on a global scale: The playing space is planet Earth, and all those pesky, stacking blocks represent carbon dioxide -, a greenhouse gas that is piling up ever more rapidly as we burn the fossil fuels that run our cars, factories and power plants. Joss Fong outlines...
Grade Level   9 10 11 12
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6
By TED-Ed
Published in 2013
Science columnist Lee Hotz describes a remarkable project at WAIS Divide, Antarctica, where a hardy team are drilling into ten-thousand-year-old ice to extract vital data on our changing climate. Robert Lee Hotz is the science columnist for the Wall Street Journal, where he writes about cutting-edge...
Grade Level   9 10 11 12
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