Climate change past the point of no return, UN says, as worst impacts are now unavoidable

People look on from the observation deck of the CN Tower as smoke from forest fires in Northwestern Ontario blankets Toronto in July.

In a strategic retreat in the fight against climate change, the United Nations has acknowledged that Earth has lost its chance to prevent some of the worst of global warming's harms. Officials say the world must now figure out how to get temperatures below the danger zone and back to safety.

In a strategic retreat in the fight against climate change, the United Nations has acknowledged that Earth has lost its chance to prevent some of the worst of global warming's harms. Officials say the world must now figure out how to get temperatures below the danger zone and back to safety.People look on from the observation deck of the CN Tower as smoke from forest fires in Northwestern Ontario blankets Toronto in July.

In a strategic retreat in the fight against climate change, the United Nations has acknowledged that Earth has lost its chance to prevent some of the worst of global warming's harms. Officials say the world must now figure out how to get temperatures below the danger zone and back to safety.

News/Science

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