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Climate change is putting world at risk of irreversible changes, scientists warn

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climate changeThe world is at growing risk of “abrupt, unpredictable and potentially irreversible changes” because of a warming climate, America’s premier scientific society warned on Tuesday.

In a rare intervention into a policy debate, the American Association for the Advancement of Science urged Americans to act swiftly to reduce greenhouse gas emissions – and lower the risks of leaving a climate catastrophe for future generations.

“As scientists, it is not our role to tell people what they should do,” the AAAS said in a new report, What we know.

“But we consider it our responsibility as professionals to ensure, to the best of our ability, that people understand what we know: human-caused climate change is happening, we face risks of abrupt, unpredictable and potentially irreversible changes, and responding now will lower the risks and costs of taking action.”

The United Nations’ climate science panel, the IPCC, will gather in Yokohama, Japan next week to release the second in a series of blockbuster reports, this time outlining how a changing climate is affecting rainfall and heat waves, sea level and the oceans, fisheries and food security.


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