Sunday, March 13, 2022

Global Warming ... How Fast?

Power Line's John Hinderaker posts the above chart from the University of Alabama, Huntsville which shows the temperature of the global lower atmosphere - measured by satellites looking down - available since 1979. The "lower atmosphere" is where we humans live. By way of explanation Hinderaker writes:

The satellite data only go back to 1979, but that is now getting to be a considerable length of time, 42 years. This graph from Dr. Roy Spencer’s web site tracks the global average lower tropospheric temperature anomaly on a running, centered 13-month average basis.

Over the 42-year period, global average temperature has increased at a rate of 0.13 degree Centigrade per decade. At that rate, it would take 80 years for average temperature to rise one degree.

Geological evidence shows the earth's temperature has risen and fallen essentially forever, since long before humans existed. The big player in this fluctuation is our sun, which is variable within a fairly circumscribed range. 

Climate alarmists greatly overestimate human ability to influence temperature in either direction. A cynic would say their views reflect "hubris."