Climate change summit leaves hope for limiting global warming

Governments at COP27 didn’t make deal for sharper cuts in greenhouse-gas emissions, but analysts say 1.7 degrees is achievable
PARIS : Governments left the United Nations climate summit this month with new doubts that global temperature increases can be limited to 1.5 degrees Celsius from preindustrial levels—but also with hope that a more realistic goal, 1.7 degrees, is within reach.
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