There is an article on WUWT called “Drats! Down the warmhole the warming went” about a new paper from Harvard:
“Climate scientists at the Harvard School of Engineering and Applied Sciences (SEAS) have discovered that particulate pollution in the late 20th century created a “warming hole” over the eastern United States—that is, a cold patch where the effects of global warming were temporarily obscured.”
The argument is essentially that the air pollution over the northeast USA kept temperatures artificially cool until clean air legislation in the 1970s – 1990s time frame.
So I’ve been looking at the NOAA data. Today it is Arkansas. The settings I use are:
And the results are quite interesting.
The NOAA says Arkansas has been cooling since 1895 by -.03F / decade.
Changing the criteria to Table and Rank, here are some things that jumped out at me.
1) The warmest year from this century was 2006, 99 out of 117th. 18 years were warmer.
2) 1896 was tied with 1934 for 110th out of 117.
3) 1897 was tied with 2011.
4) CO2 is one wimpy GHG in Arkansas