Climate Crisis Could Push a Third of Humanity From Most Livable Environment

Climate change is remapping where humans can exist on the planet. As optimum conditions shift away from the equator and toward the poles, more than 600 million people have already been stranded outside of a crucial environmental niche that scientists say best supports life. By late this century, according to a study published last month in the journal Nature Sustainability, 3 to 6 billion people…

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