To understand ethanol's potentially messy and dangerous side effects at the local level, we have to look at reports from corn belt papers (see citations below). (treehugger.com)
The chart specifically compares state - of - the - art climate model temperature output for the U.S. corn belt region versus NOAA's climate network system (USHCN). (c3headlines.com)
Interesting to note that the US corn belt alone sucks up more Carbon Dioxide than the Amazon Rain Forest. (environmentalleader.com)