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Next, the PAGES2019 0-30N latband. Their CPS reconstruction (CPS) for the 0-30N latband (extracted from the global reconstruction) looks almost exactly the same as reconstructions for the 0-30S and 30-60S latbands. However,...

by Patrick Michaels A critique of Judah Cohen’s recent cover article in Science linking February’s disastrous cold outbreak in Texas to global warming I’ve always had trouble with the notion that warming causes cooling...

by Robert Wade A microcosm on the ‘morality’ of cancel culture: the aborted conference on ‘Global Warming: Mitigation Strategies’, hosted by the Italian scientific academy the Lincei...

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by Judith Curry In a recent invited talk at the American Chemical Society annual meeting, I attempted to explain the climate debate in 15 minutes. This talk was given in a session on sustainability. Other invited speakers...

In a Climategate email. Keith Briffa famously sneered at Michael Mann’s claim that a temperature reconstruction could represent a hemisphere, including the tropics, by regressing a “few poorly temperature respresentative...

The 30-60N latitude band gets lots of attention in paleoclimate collections – probably more proxies than the rest of the world combined. The 30-60S latitude band is exactly the same size, but it is little studied. It...

by Ross McKitrick One day after the IPCC released the AR6 I published a paper in Climate Dynamics showing that their “Optimal Fingerprinting” methodology on which they have long relied for attributing climate change to...

About 20% of the PAGES 2019 proxies are 50 Asian tree ring chronologies, all of which were originally published as chronologies in PAGES (2013). At the time, none of these series (and certainly not in these digital versions,...

Although climate scientists keep telling that defects in their “hockey stick” proxy reconstructions don’t matter – that it doesn’t matter whether they use data upside down, that it doesn’t...

by Judith Curry The IPCC AR6 WGI report has been released [link] I’m reading it now. So far I’ve read the Summary for Policy Makers, the Technical Summary and Chapter 1. Detailed comments will be forthcoming later...

by Judith Curry “Is the road to scientific hell paved with good intentions?” – political psychologist Philip Tetlock (1994) Part I in this series addressed logical fallacies...

by Judith Curry Heat waves are the new polar bears, stoking alarm about climate change.  Climate scientists addressing this in the media are using misleading and/or inadequate approaches.  How should we approach...

by Judith Curry How would you explain the complexity and uncertainty surrounding climate change plus how we should respond (particularly with regards to CO2 emissions) in five minutes? Last week I served on a panel for a...