Global versus Greenland Holocene Temperatures

By Andy May Last week, I posted a global temperature reconstruction based mostly on Marcott, et al. 2013 proxies. The post can be found here. In the comments on the Wattsupwiththat post there was considerable discussion about the difference between my Northern Hemisphere mid-latitude (30°N to 60°N) and the GISP2 Richard Alley central Greenland temperature…

A Holocene Temperature Reconstruction Part 3: The NH and Arctic

By Andy May In the last post (see here) we reexamined the Marcott, et al. (2013) proxies for the Southern Hemisphere mid-latitudes and the tropics. In this post, we will present two more reconstructions using their proxies, these are for the Northern Hemisphere mid-latitudes (30°N to 60°N) and for the Arctic region (60°N to 90°N).…

A Holocene Temperature Reconstruction Part 1: the Antarctic

By Andy May The only recent attempt at a global Holocene temperature reconstruction available today is the one by Marcott, et al. (2013), the paper abstract can be viewed here. His reconstruction is shown in figure 1. Figure 1 The Y axis is a reconstructed global temperature anomaly from the 1961-1990 mean. “Years BP” are…

Lindzen, Soon and Spencer debunked?

By Andy May On Bret Stephens facebook page, I complimented Mr. Stephens on what I thought was a very good column. I also noted that the eminent climate scientist Dr. Richard Lindzen had said similar things. To this a George Smith replied, in part, as follows: “Few “skeptics” have been debunked as much as Lindzen…