No Warming In Iowa Since CO2 Was 310 ppm stevengoddard 10 years ago X Privacy & Cookies This site uses cookies. By continuing, you agree to their use. Learn more, including how to control cookies. Got It! Advertisements For the geographically challenged, Iowa is 2,100 kilometres away from Maine. Apparently the CO2 forgot to “trap heat” in the United States. Advertisements Share this:Print RelatedNo 100 Degree Readings In The Midwest This SummerJuly 28, 2014With 25 commentsAll Iowa Stations Set Their All-Time Record Maximum Prior To 1940March 17, 2013With 3 commentsMay 1934 Temperature Reached 111 F In IowaJune 30, 2012With 4 comments