myway/AP
by Paola Flores
February 20, 2013

The growing global demand for quinoa by health food enthusiasts isn't just raising prices for the Andean "super grain" and living standards among Bolivian farmers. Quinoa fever is running up against physical limits.

(excerpted)
http://apnews.myway.com/article/20130221/DA4IMD5O1.html

Do the Birkenstock wearing 'progressives' really care whether their craving for a more 'authentic' health food causes starvation in the local populations that grows it?

I doubt it..

No they don't care. It's like every other issue they take on.