North America’s non-organic maize crop has been fingered as causing the big dead zone along the northern Gulf of Mexico. The maize fields are fertilized with tons of nitrogen fertilizers, which wash out of the fields and down the Mississippi drainage.
If you exercise your green impulses, you avoid non-organic maize products (which also means avoiding many prepared foods, including fast foods), thereby contributing less to the dead zone—and other environmental nightmares.
So, I now await the widespread call for organic ethanol at the pump. Yes, I googled it and it’s available, but apparently for medicinal uses, not as biofuel.