Climate change, coffee and implications for basins

I quote from CIAT's blog
"In Colombia alone, there are over half a million smallholder coffee farmers who depend on the crop. In Central America, coffee is the second greatest source of rural income for the 20 million-or-so farmers in the region. If you take into account the associated rural businesses that buy, transport, process and export the crop, you realise that coffee is a major contributor to GDP for most countries in the region."
"[CIAT] looked into the future of coffee production in Central America, to see what climate change has in store. The findings are shocking. For example, Nicaragua will lose half of its potential coffee-growing area if temperatures increase by 2 degrees C. That means a large proportion of the country’s GDP will be wiped out and 2.5 million rural coffee farmers will have to find an alternative means of feeding their children. And for all you coffee lovers out there, [CIAT found] the first thing to disappear is quality. So as the world acquires a taste for decent coffee, climate change will reduce significantly the global capacity to produce a quality cuppa. And that means higher prices for the consumers."
A further conclusion of the work is that, where it is feasible, coffee production will migrate uphill (2 degrees temperature increase implies about 350 m higher altitude) to sites that will have the same temperature regime as now. But in much of Central America, the higher areas are forested, which implies land clearing with important implications for ecological services.