Crossing these points threatens to irreversibly disrupt the natural systems that have kept Earth’s climate relatively stable for thousands of years. If you’ve been reading the climate headlines recently, odds are you’ve heard about “tipping points” - and for good reason. Now, scientists worry that we’re pushing them toward irreversible change. Octo| 8:00 AM What are climate change tipping points? A handful of natural systems - think the Amazon rainforest and Antarctic ice sheets, for example - have kept Earth’s climate relatively stable over the past 11,700 years.
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