An alliance of more than 11,000 scientists have signed their names to a research statement declaring a global climate emergency that could one day make it impossible to live in many parts of the world.
"The climate crisis has arrived and is accelerating faster than most scientists expected," reads the statement, published Tuesday in the journal BioScience. "It is more severe than anticipated, threatening natural ecosystems and the fate of humanity. Especially worrisome are potential irreversible climate tipping points and nature's reinforcing feedbacks (atmospheric, marine and terrestrial) that could lead to a catastrophic 'hothouse Earth,' well beyond the control of humans. These climate chain reactions could cause significant disruptions to ecosystems, society and economies, potentially making large areas of Earth uninhabitable."
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