In summary: global climate change is having adverse affects on bee populations as well as coffee production. Coffee plants, the best ones grown on the mountains, prefer cooler temperatures, and though they are self pollinating, profitable yields occur with the assistance of pollinators, which are also in turn affected by rising temperatures.

“Bees are vital to the integrity of coffee plots. Without the services the provide, coffee yields will drop, and this will directly affect the incomes of smallholder farmers. If there are bees in coffee plots, they are very efficient and very good at pollinating, so productivity increases and also berry weight.”
-Imbach

“Wild bees are a precious natural resource we should celebrate and protect. If managed with care, they can help us continue to produce billions of dollars in agricultural income and a diversity of nutritious food.

Two thirds of the most valuable commodities on earth rely on bees and other pollinators to produce well. That’s easily worth tens of billions per year, every year. These crops also contribute essential nutrients to diets around the world. Ongoing declines in pollinators puts all this at risk. Pollinators are the essential and silent heroes of our global food system.” -Ricketts

https://www.ecowatch.com/climate-ch.....484470555.html