"The mantra has been: Limit global warming to 1.5 degrees Celsius or risk climate catastrophe. But at COP27, there are hints of backsliding."

"SHARM EL SHEIKH, Egypt — At last year’s global climate talks in Glasgow, world leaders, scientists and chief executives rallied around a call to “keep 1.5 alive.”

The mantra was in reference to an aspirational goal that every government endorsed in the 2015 Paris climate agreement: try to stop global average temperatures from rising more than 1.5 degrees Celsius (2.7 degrees Fahrenheit) above preindustrial levels. Beyond that threshold, scientists say, the risk of climate catastrophes increases significantly.

Now, 1.5 is hanging on for dear life.

At the United Nations climate summit that is underway in this Red Sea town, countries are clashing over whether they should continue to aim for the 1.5-degree target."

Brad Plumer, David Gelles, and Lisa Friedman report for the New York Times Nov. 16, 2022. [2]

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"G20 Agrees To Pursue Efforts To Limit Temperature Rise To 1.5C" (Reuters) [3]