attribution, Tag

  • By Javier The existence of a ~ 2400-year climate cycle, discovered in 1968 by Roger Bray, is supported by abundant evidence from vegetation changes, glacier re-advances, atmospheric changes reflected in alterations in wind...
  • by Javier The Neoglacial has been a period of progressive cooling, increasing aridity, and advancing glaciers, culminating in the Little Ice Age. The main Holocene climatic cycle of ~ 2400 years delimits periods of more stable...
  • by Javier Vinos First in a two part series on Holocene climate variability. Summary: Holocene climate is characterized by two initial millennia of fast warming followed by four millennia of higher temperatures and humidity,...
  • by Nic Lewis [W]e estimate that the warming slowdown (< 0.1 K/decade trend beginning in 1998) could persist, due to internal variability cooling, through 2020, 2025 or 2030 with probabilities 16%, 11%, and 6%, respectively....
  • by Javier Dansgaard-Oeschger (D-O) events are the most dramatic and frequent abrupt climate change events in the geological record. They are usually explained as the result of an Atlantic Ocean salinity oscillation paced...
  • by Larry Kummer, from the Fabius Maximus website. Many factors have frozen the public policy debate on climate change, but none more important than the disinterest of both sides in tests that might provide better evidence...
  • by Judith Curry [O]ur results suggest that the recent record temperature years are are roughly 600 to 130,000 times more likely to have occurred under conditions of anthropogenic than in its absence...
  • by Sergey Kravtsov, Marcia Wyatt, Judith Curry and Anastasios Tsonis A discussion of two recent papers: Steinman et al. (2015) and Kravtsov et al. (2015) Last February, a paper by Mann’s research group was published in...
  • 400(?) years of warming Tue, 17 Nov 15, 5:41am
    by Judith Curry So, exactly how long has it been warming? The IPCC AR5 made a very strong statement regarding the attribution of recent climate change: It is extremely likely that more than half of the observed increase in...
  • Lukewarming Fri, 6 Nov 15, 1:06am
    by Judith Curry Two new books on lukewarming have recently been published. Lukewarming – Pat Michaels and Chip Knappenberger Lukewarming: The New Climate Science that Changes Everything, by Pat Michaels and Chip Knappenberger...
  • by Vaughan Pratt Judith Curry’s recent critical assessment of “L4”, as I’ll call Shaun Lovejoy’s October 20 EOS article, raised the following points: About 40% of the warming since 1880 occurred...
  • Climate closure (?) Sat, 24 Oct 15, 5:27am
    by Judith Curry The scientific debate is now over; the moment of closure has arrived. – Shaun Lovejoy EOS has published an opinion piece by Shaun Lovejoy: Climate Closure. Below are excerpts; see the paper (open access)...
  • by Judith Curry Doubt and Certainty in Climate Science is an important new book that everyone should read.  And its free. It is a privilege to make available to you the book Doubt and Certainty in Climate Science, by Alan...
  • Hiatus revisionism Fri, 18 Sep 15, 3:03am
    by Judith Curry Some interesting new papers on the hiatus in global warming. I have been expecting to start seeing papers on the ‘hiatus is over.’ Instead I am seeing papers on ‘the hiatus never happened.’...
  • We argue for a redesign of climate change mitigation policies to be ‘anti-fragile’ with respect to scientific uncertainty. – Otto et al. A very interesting new article in Nature Climate Change: Embracing uncertainty...
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