Catastrophic climate 'tipping points' may be imminent
In a sweeping new report, hundreds of scientists warn that the world must rapidly phase out planet-warming emissions to avoid crossing dangerous thresholds.
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In a sweeping new report, hundreds of scientists warn that the world must rapidly phase out planet-warming emissions to avoid crossing dangerous thresholds.
The world is in danger of hitting the point of no return for five of Earth's natural systems because of human-caused climate change, a team of 200 scientists said on Wednesday on the sidelines of the United Nations' climate summit. The report on so-called “tipping points” — moments when the Earth has warmed so much that certain side effects become irreversible — looks at 26 different systems and points to five of them — the melting of the Greenland and West Antarctic ice sheets, the dying off of warm-water coral reefs, the thawing of permafrost and...
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