1+ hour, 19+ min ago  (440+ words) I've often come across graphs on social media showing atmospheric CO2 concentrations over time, with various dates of climate agreements highlighted. Shared by doomers and skeptics alike, they are used to argue that the rise of CO2 concentrations is inexorable and has…...

3+ week, 1+ day ago  (1183+ words) van Vuuren et al justify this move by noting that "the CMIP6 high emission levels (quantified by SSP5-8. 5) have become implausible, based on trends in the costs of renewables, the emergence of climate policy and recent emission trends," citing the paper that…...

1+ mon, 2+ week ago  (994+ words) I am finalizing a textbook on climate risk and am posting chapters as I finish them. I'd previously posted chapters about embedded energy and physical climate risk; this post is a chapter on transition risk, the economic and social risks…...

2+ mon, 1+ week ago  (898+ words) But a somewhat obscure climate policy choice of how to value methane emissions compared to CO2 is doing just that "and unfortunately a number of climate scientists who should know better are defending it. To understand why the timeline over which…...

3+ mon, 3+ day ago  (266+ words) One of my predictions in our end of the year wrap-up was that 2026 year might be the year when global clean energy investment exceeds global military spending. This ended up being quoted in the New York Times last week by…...

3+ mon, 1+ week ago  (1128+ words) It is with heavy hearts that we announce the passing of the DOE Climate Working Group (CWG) Report. The CWG Report's death was announced in footnote 8 of the EPA's Endangerment Finding rollback: The CWG Report was, in the end, a…...

4+ mon, 1+ hour ago  (430+ words) With the advent of modern reanalysis products (weather models run backwards in time, ingesting data from satellites, weather balloons, airplanes, and surface observations) we now have an unprecedented look at the real-time evolution of the Earth's climate. I often use…...

4+ mon, 1+ week ago  (1367+ words) As memories of the recent winter storm begin to fade and new systems line up on the horizon, there's a familiar refrain on social media: claims that climate change is somehow to blame for every burst of extreme cold. When…...

5+ mon, 4+ day ago  (798+ words) This is, it is worth pointing out, not too far from the policies pursued by both the Obama and Biden1 administrations, where both clean energy and domestic oil and gas production boomed (while the dirtiest fossil fuel, coal, saw a dramatic…...

5+ mon, 1+ week ago  (119+ words) Happy New Year to all our readers! In our final post of 2025, Zeke and Andy talk about climate change in 2025 and what to expect in 2026. Happy New Year Zeke and Andrew! Thank you for all your great climate reporting. It'll…...