A Recent History of Climate Change: Quick Facts

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Spitsbergen, Norway: polar bear

Infographic showing a timeline of major 20th- and 21st-century climate change events, with key dates, a graph of rising atmospheric CO2, ocean acidification effects, and a world map of Paris Agreement ratification.

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Climate change The Perils of an Early Spring Is Climate Change Real?What’s the Difference Between Global Warming and Climate Change?Timeline of Climate Change Global warming Greenhouse effect Dansgaard-Oeschger event Season Snowball Earth hypothesis Methane burp hypothesis