Death blow to Barycentrism: 'On the alleged coherence between the global temperature and the sun’s movement'

People send me stuff. Tonight I got an email that contained a link to a paper that takes on the wonky claims related to barycentrism and Earth’s climate, specifically as it relates to Nicola Scafetta’s 2010 and 2012 papers. This new paper taking on the Scafetta claims will be published in the Journal of Atmospheric…

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How Not To Model The Historical Temperature

Guest Post by Willis Eschenbach Much has been made of the argument that natural forcings alone are not sufficient to explain the 20th Century temperature variations. Here’s the IPCC on the subject: I’m sure you can see the problems with this. The computer model has been optimized to hindcast the past temperature changes using both…

Some WUWT milestones and some housekeeping

Recently, this blog passed a few milestones that I thought would be worth sharing with readers. For all of our critics and the vitriol all they throw our way, I challenge any of them to find a climate related blog that even comes close to the level of readership we enjoy here. We recently passed…

An Inherently Stable System

Guest Post by Willis Eschenbach At the end of my last post , I said that the climate seems to be an inherently stable system. The graphic below shows ~2,000 climate simulations run by climateprediction.net.  Unlike the other modelers, whose failures end up on the cutting room floor, they’ve shown all of the runs ……

Maunder and Dalton Sunspot Minima

Guest Post by Willis Eschenbach In a recent interchange over at Joanne Nova’s always interesting blog, I’d said that the slow changes in the sun have little effect on temperature. Someone asked me, well, what about the cold temperatures during the Maunder and Dalton sunspot minima? And I thought … hey, what about them? I…

Cycling in Central England

Guest Post by Willis Eschenbach Looking at a recent article over at Tallbloke’s Talkshop, I realized I’d never done a periodogram looking for possible cycles in the entire Central England Temperature (CET) series. I’d looked at part of it, but not all of it. The CET is one of the longest continuous temperature series, with…

Weekly Climate and Energy News Roundup

The Week That Was: 2014-03-15 (March 15, 2014) Brought to You by SEPP (www.SEPP.org) The Science and Environmental Policy Project Quote of the Week: “…simulation methods suffer from a fundamental weakness. They tend to focus attention on optimizing something within the initial assumptions rather than examining the latter; … In practice, however, simulation models outside…

Congenital Cyclomania Redux

Guest Post by Willis Eschenbach Well, I wasn’t going to mention this paper, but it seems to be getting some play in the blogosphere. Our friend Nicola Scafetta is back again, this time with a paper called “Solar and planetary oscillation control on climate change: hind-cast, forecast and a comparison with the CMIP5 GCMs”. He’s…