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Catastrophic tipping point in Greenland reached as crystal blue lakes turn brown, belch out carbon dioxide

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Greenland's lakes turned brown after record heat and rain in 2022 pushed the lakes past a tipping point.

The lakes began to emit carbon dioxide into the atmosphere after they turned brown and began emitting CO .

These types of widespread changes would normally take centuries .

But the lakes also provide residents of Greenland with drinking water, which could be compromised.