Global Vital Signs

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“Since 1998, human activity has trapped more than two billion atomic bombs’ worth of extra heat in our planet’s climatic system—primarily by raising greenhouse-gas concentrations to their highest levels in 800,000 years, at the fastest rate Earth has seen since the age of dinosaurs.”

National Geographic August 2017.


NASA- Updated on 12/1/17

NASA- Updated on 12/1/17