How to compare today to the past

By |2021-06-24T16:06:52+02:0024 June 2021|News, USA|Comments Off on How to compare today to the past

In the last post, I discussed the problems comparing modern instrumental global or hemispheric average temperatures to the past. Ocean temperature coverage was sparse and of poor quality prior to 2005. Prior to 1950, land (29% of the surface) measurements were also sparse and of poor quality. Only proxy temperatures are available before thermometers were [...]