If there were any remaining doubters, then the 2021 report by the UN’s Intergovernmental Panel on Climate Change (IPCC) should have dispelled them.

The evidence is incontrovertible that human activity has warmed the planet and caused widespread and rapid changes in the atmosphere, the ocean, the biosphere and on land. These changes are unprecedented over many centuries and over thousands of years. It has also been established with a high degree of certainty that some of that damage is irreversible...

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