A new 1735-2015 temperature reconstruction (Heeter et al., 2020) using Western US tree ring proxies shows peak 1940s warmth and post-1950s cooling. This is the same region Dr. Michael Mann used tree ring data to construct his famous hockey stick graph.

Image Source: Heeter et al., 2020

A new Scandinavian temperature reconstruction (Seftigen et al., 2020) that’s “skillfull in characterizing past temperature changes over the past one to two millennia” finds there’s been no net warming in Greta’s home country (Sweden) in the last 212 years.

Image Source: Seftigen et al., 2020

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September 24, 2020 at 10:17AM