The CMIP6 multi-model ensemble is a unique resource with input from scientists and modeling groups from around the world. But as we've discussed before (#NotAllModels) there are some specific issues that require users to be cautious in making predictions. Fortunately, there are useful 'best practices' that can help avoid the worst pitfalls. A new paper by that has just appeared in Nature … Read Full Article about Making predictions with the CMIP6 ensemble
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Net Zero/Not Zero
At the COP26 gathering last week much of the discussion related to "Net-Zero" goals. This concept derives from important physical science results highlighted in the Special Report on 1.5ºC and more thoroughly in the last IPCC report that future warming is tied to future emissions, and that warming will effectively cease only once anthropogenic CO2 emissions are balanced by anthropogenic CO2 … Read Full Article about Net Zero/Not Zero
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The IPCC Sixth Assessment Report
Climate scientists are inordinately excited by the release of a new IPCC report (truth be told, that's a bit odd - It's a bit like bringing your end-of-(seven)-year project home and waiting anxiously to see how well it will be received). So, in an uncharacteristically enthusiastic burst of effort, … Read Full Article about The IPCC Sixth Assessment Report
Unforced Variations: Dec 2021
This month's open thread on climate science topics. … Read Full Article about Unforced Variations: Dec 2021
Forced responses: Nov 2021
A bi-monthly open thread related to climate solutions. This month will start off with COP-26 and many targets and plans and mechanisms will be proposed and discussed. Look out for the updated impacts of the evolving NDCs such as this one from Climate Resource, suggesting that the world could be on … Read Full Article about Forced responses: Nov 2021
Unforced variations: Nov 2021
This month's open thread. The first two weeks will be dominated by COP-26, and various science updates that will be announced there, including this year's Global Carbon Project report. Curiously, there is some archival interest in the climategate affair possibly in connection to COP-26 (a BBC … Read Full Article about Unforced variations: Nov 2021
A science-based move to climate change adaptation
All countries in the world urgently need to adapt to climate change but are not yet in a good position to do so. It's urgent because we are not even adapted to the present climate. This fact is underscored by recent weather-related calamities, such as flooding in Central Europe and heatwaves over … Read Full Article about A science-based move to climate change adaptation
Tributes to Geert Jan van Oldenborgh
As many of you will know, Geert Jan van Oldenborgh died on Oct 12, 2021, and in the last week a number of very touching tributes have appeared. Notably, a lovely obituary in the NY Times by Henry Fountain, a segment on the BBC's Inside Science from Roland Pease, a piece on Bloomberg News by Eric … Read Full Article about Tributes to Geert Jan van Oldenborgh
A Nobel pursuit
Klaus Hasselmann and Suki Manabe Last week, the Nobel physics prize was (half) awarded to Suki Manabe and Klaus Hasselmann for their work on climate prediction and the detection and attribution of climate change. This came as quite a surprise to the climate community - though it was … Read Full Article about A Nobel pursuit
Unforced Variations: Oct 2021
Fall is here (in the northern hemisphere at least), along with articles about the impact of climate change on autumnal colors. LandSat9 successfully launched to continue an almost 50 year long series of remote sensing (since 1972!), and the World Economic Forum has proposed and Earth Operations … Read Full Article about Unforced Variations: Oct 2021
The definitive CO2/CH4 comparison post
There is a new push to reduce CH4 emissions as a possible quick 'win-win' for climate and air quality. To be clear this is an eminently sensible idea - as it has been for decades (remember the 'Methane-to-markets' initiative from the early 2000s?), but it inevitably brings forth a mish-mash of … Read Full Article about The definitive CO2/CH4 comparison post
Forced responses: Sep 2021
A bimonthly open thread for discussions related to climate solutions. Note that open discussions of climate science are here. Possible topics of interest are the trial carbon-capture effort in Iceland and the discussions in the lead up to COP26. Please be constructive and substantive. … Read Full Article about Forced responses: Sep 2021
Unforced Variations: Sep 2021
This month's open thread for climate science topics. Not sure about you, but we are still reading the details of the IPCC report. We are watching the unfolding hurricane season with trepidation, with particular concern related to the impacts of compound events (and not just those associated … Read Full Article about Unforced Variations: Sep 2021