Climate crisis threatens medical blood supply in US amid extreme weather

Turnout at blood drives affected as summers get hotter and extreme weather causes cancellations, Red Cross warns

The climate crisis is threatening the medical blood supply in the US, with this summer's record heat contributing to an emergency blood shortage, the American Red Cross has warned.

As summers in the US get progressively hotter, blood drives across the country to persuade people to donate are facing challenges. In the month of July alone, when more than 130 million Americans were under heat advisory warnings, the American Red Cross said that turnout at almost 100 of its blood drives was affected by the weather.