‘This is it. If we don’t amp up, we’re goners’: the last chance to confront the climate crisis?

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When it comes to addressing the climate emergency, there have been hopeful moments before that ultimately led to nothing. Now, hope rises again

The Earth’s climate has always been a work in progress. In the 4.5bn years the planet has been spinning around the sun, ice ages have come and gone, interrupted by epochs of intense heat. The highest mountain range in Texas was once an underwater reef. Camels wandered in evergreen forests in the Arctic. Then a few million years later, 400 feet of ice formed over what is now New York City. But amid this geologic mayhem, humans have gotten lucky. For the past 10,000 years, virtually the entire stretch of human civilization, people have lived in what scientists call “a Goldilocks climate” – not too hot, not too cold, just right.

Now, our luck is running out. The industrialized nations of the world are dumping 34bn tons or so of carbon into the atmosphere every year, which is roughly 10 times faster than Mother Nature ever did on her own, even during past mass extinction events. As a result, global temperatures have risen 1.2C since we began burning coal, and the past seven years have been the warmest seven years on record. The Earth’s temperature is rising faster today than at any time since the end of the last ice age, 11,300 years ago. We are pushing ourselves out of a Goldilocks climate and into something entirely different.

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