World health organization

10 facts on climate change and health

A group of children in Bamako, Mali, eat from a communal bowl of food.
WHO/Benoist Matsha-Carpentier

Malnutrition causes millions of deaths each year, from both a lack of sufficient nutrients to sustain life and a resulting vulnerability to infectious diseases such as malaria, diarrhoea, and respiratory illnesses. Increasing temperatures on the planet and more variable rainfalls are expected to reduce crop yields in many tropical developing regions, where food security is already a problem.

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