As CO2 Has Increased, Hot Days In The Midwest Have Decreased

6 Responses to As CO2 Has Increased, Hot Days In The Midwest Have Decreased

1. daveburton says:

   June 14, 2014 at 4:04 am

   “The Midwest” is a rather large place. Parts of it see lots of 100°F days, parts never see 100°F days,

   I think that in parts of the Midwest, e.g., much of Illinois, increased agricultural irrigation has increased average summer humidity, which moderates temperatures and reduces daytime highs.

   I doubt that CO2 has had much to do with it, though it might have a small effect. It seems plausible that CO2 could contribute slightly to increased average summer humidity, because higher CO2 levels produce bigger, healthier plants, and bigger plants put more H2O into the atmosphere through transpiration.

   Reply
   • Andy DC says:

     June 15, 2014 at 4:44 pm

     Irrigation is used in places like Nebraska and Kansas, but not very much in Illinois and Iowa.

     Reply
2. Send Al to the Pole says:

   June 14, 2014 at 4:12 am

   That’s perfectly consistent with CAGW!
   …..because it isn’t happening….
   ….. because the dingo ate the global warming. Because Science!

   Reply
3. David says:

   June 14, 2014 at 4:27 am

   I can tell you…here in Santa Fe, NM temps. dropped 10 degrees in a yr.here. Last yr. today it was 93…today it was 83…

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4. Another Ian says:

   June 14, 2014 at 8:17 am

   Steve

   O/Tbut FYI

   http://joannenova.com.au/2014/06/big-news-part-i-historic-development-new-solar-climate-model-coming/

   Reply
5. stpaulchuck says:

   June 14, 2014 at 1:43 pm

   take a look at the NASA SABER Project results. It would appear that CO2 actually protects us from solar long wave heating. So then, more CO2 in the atmosphere, more protection from (direct) solar heating.

   Reply