As with many types of agriculture, coffee is at risk from our warming climate.
Rising temperatures are making some lower altitude farms unsuitable for growing Arabica, the species of coffee plant from which the most flavourful varieties and cultivars derive.
In the next 30 years, Fairtrade International predict that much of the coffee grown in Brazil, Indonesia, Vietnam, and Colombia will need to move 300-500m higher to avoid significantly lower yields.
This represents two-thirds of the coffee produced globally.
Such a relocation will require investment and upheaval, and leave some farmers battling for survival, in part because coffee bushes take 3-4 years from planting to become fully productive.
Such a move may also affect some of the green areas that, until now, were not planted with coffee but kept as forest reserves, threatening their existence and conservation.