The 2021 heat dome in the Pacific Northwest that overwhelmed emergency rooms and left hundreds dead. The 2022 heat wave in India that devastated the wheat harvest. The deadly heat waves in France in 2003, and China in 2013.

A new study links these recent heat waves — and more than 200 others — to human-caused climate change, and the greenhouse gas pollution of major fossil fuel producers.

The new study, published Wednesday in the journal Nature , found that 213 heat waves were substantially more likely and intense because of the activity of major fossil fuel producers, also called carbon majors . They include oil, coal and cement companies, as well as some countries.

The scientists found as much as a quarter of the heat waves would be "virtually impossible" without the climate po

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