If the world keeps increasing greenhouse gas emissions at its current speed, all sea ice in the Arctic will disappear in the 2030s, an event that could at best be postponed until the 2050s should emissions be somehow reduced. 

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Smoke from intense wildland fires in Canada billowed over the upper Midwest in June 2023, causing hazy skies and hazardous air quality in Canada and across several U.S. states.

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