As CO2 has increased from 340 PPM to over 400 PPM, March 3 US temperatures have plummeted more than five degrees.
On this date in 1910, most of the US was over 60 degrees, and more than a third of the country was over 80 degrees. Arizona was 100 degrees, California was 98, Arkansas was 80, Illinois was 76, Kansas was 85, Kentucky was 85, Missouri and Mississippi were 80, New Mexico was 87, Oklahoma was 86, and Tennessee was 82.
Compare 1910 vs. the very cold March 3 of 2014.
