Exclusive: Analyses are stark evidence of how global heating is already supercharging deadly weather beyond anything ever experienced by humanity

• How do we know that the climate crisis is to blame for extreme weather?

At least 24 previously impossible heatwaves have struck communities across the planet, a new assessment has shown, providing stark evidence of how severely human-caused global heating is supercharging extreme weather.

The impossible heatwaves have taken lives across North America, Europe and Asia, with scientific analyses showing that they would have had virtually zero chance of happening without the extra heat trapped by fossil fuel emissions.