More coffee is grown and traded than wheat rice, corn or livestock. In fact, it's the third leading commodity after petroleum and strategic metals. More than automobiles, steel, and technology. Because coffee is addictive. There's another problem.
Coffee is also the most heavily sprayed of all agricultural commodities.
It is grown in regions where there are very few restrictions, regulations or protections regarding pesticide use. The environmental impact is tremendous. Coffee doesn't grow in Kansas, it grows in and around the rain forest. In fact, rain forest has been destroyed to plant coffee farms. The fact is that coffee is a terribly inefficient and incredibly labor-intensive crop.