I have spent most of the last year expanding my coffee knowledge. One thing I was already confident about, and remain so, is that arabica is better than robusta on two scales that matter most to me: taste, and environmental impact. From 2010-2017 during our residency in the Western Ghats, we developed and opened a series of properties where both taste and environmental impact were brand signatures formed in Costa Rica.
With regard to coffee, I knew there was more than one good reason why Costa Rica only permits arabica coffee to be grown in the country. And we sourced the highest grade arabica coffee produced in the Western Ghats as much as we could.

A Malabar pied hornbill, one of 204 species of bird found on coffee plantations in a new study, which found that the tree cover from shade-grown coffee farms provides a welcome habitat for all kinds of animal species. Credit Shashank Dalvi
I took to India a conviction that robusta coffee was to be avoided, but a few months ago started learning otherwise. Today I have read an article that reminds me to keep rethinking.
Thanks to Jason Daley in Sierra magazine for this look at the same scientific findings as those I first read in February in the New York Times, (as I drink an organic arabica that I am sampling from a roaster in Atlanta, and even with this news about robusta I expect to remain committed to arabica for my own consumption, as well as our commercial purposes):
Which Coffee Is Better for Biodiversity?
A new study shows sun-loving robusta coffee doesn’t have to hurt biodiversity
When coffee consumers think about the most sustainable way to manage their caffeine habit, they normally think about the cup it’s in—is it recyclable? But what about the coffee itself? Some coffee plantations require clear-cutting—will drinking one type of coffee have a bigger impact on the environment than another? Continue reading