By The Economist on youtube.com
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In this step you'll learn about the potential effects of global warming reaching three degrees. A three degree rise in global temperatures could lead to extreme weather events such as heatwaves, droughts, and storms. These events would have devastating consequences for many people around the world, particularly those living in rural areas, coastal cities, and slums. To avoid a three degree world, drastic measures must be taken to reduce greenhouse gas emissions. "