The ‘Real Proxy’ Temperature Record
Byon 20. July 2017
As a new scientific paper (Turney et al., 2017) indicates, the Southern Oceanencompasses 14% of the Earth’s surface. And according to regional temperature measurements that have apparently not been subjected to warming “corrections” by data adjusters, the Southern Ocean has been cooling in recent decades.
The Northern Hemisphere embodies the top half (50%) of the world’s surface. And according to many scientists’ temperature reconstructions using proxy evidence (ice cores, tree rings, etc.) from numerous locations North of the equator, there has been no net warming in the Northern Hemisphere since the 1940s.
Antarctica (2.7%) and the Indian Ocean (14.4%) together represent about 17% of the Earth’s surface. Neither Antarctica nor the Indian Ocean have been observed to have warmed since the 1970s, with Antarctica exhibiting a cooling trend.
Just these regions of the globe alone represent more than 75% of the Earth’s surface. A net non-warming (cooling) trend in these regions in recent decades is highly inconsistent with commonly accepted instrumental data sets (such as NOAA, NASA, and HadCRUT) which show an abrupt recent warming trend – especially since the 1980s.
Is Ice Core Evidence More Reliable Than Heavily Adjusted Instrumental Record?
Earlier this year, an intriguing paper published by Steiger et al. (2017) contrasted the instrumental temperature record (which showed dramatic recent warming) with the global-scale temperature record as revealed by “real proxy” evidence from ice cores. The reconstructions using proxy evidence showed a global warming trend during the first half of the 20th century, and then no significant net warming thereafter. (Click to Site)