Rising temperatures in tropics to lead to lower coffee yields and higher prices, study suggests

Researchers analysed the impacts of climate factors such as temperature, rainfall and humidity in the top 12 coffee-producing countries globally between 1980 and 2020.

The optimal growing temperatures for the two major coffee varieties, arabica and robusta, are 18 to 22C and 22 to 28C.

Previous research has shown the amount of land suitable for coffee cultivation globally could halve by 2050 due to climate change.

The 12 top coffee growers account for about 90% of global production. These include Brazil, Peru and Mexico in the Americas; Uganda and Ethiopia in Africa; and Vietnam and Indonesia in south-east Asia.