And it is more than Clouds in my Coffee*, as e.g., the Arabica coffee type only grows properly with mean annual temperatures of up to 24C. If the temperature rises above that the coffee fruit ripens too fast, and the plants get damaged. And Arabica represents approx. 70% of the global production.
If you sum all up the rising temperatures could reduce the area suitable for growing coffee up to 50% by 2050.
But there are also ways of tackling this scenario by integrating trees into coffee farms and offering amongst other local shade for the coffee plants. And having a diverse vegetation will lead to a more balanced ecosystem.
And the consumer should also be ready to pay a fairer price for their coffee enabling a more sustainable farmer financing and fair payments to the farmers.
* the line "clouds in my coffee" can be found in the song You´re So Vain by Carly Simon (https://www.youtube.com/watch?v=j13oJajXx0M)