One of the most pervasive misunderstandings of climate — even among some who publish on climate — is the belief that any long-term trend in a measured climate variable indicates…
By Roger Pielke Jr. | May 7, 2025
When it comes to climate change, to invoke one of Al Gore’s favorite sayings, the biggest challenge is not what we don’t know, but what we know for sure but…
By Roger Pielke Jr. | May 7, 2025
Today kicks off a new series here at THB — Making Sense of Climate Scenarios. I have three motivations for this series: This series is an exercise in transparency, with a…
By Roger Pielke Jr. | April 29, 2025
Last week Politico published a scoop related to climate research under the Trump Administration: The Trump administration is canceling funding for the U.S. Global Change Research Program, the entity that produces the federal…
By Roger Pielke Jr. | April 21, 2025
On March 25, Rumeysa Ozturk, a graduate student at Tufts University — “a Fulbright scholar working on a PhD in child study and human development on an F-1 student visa”…
By Roger Pielke Jr. | April 15, 2025
Climate scenarios are fundamental to climate research and policy. For more than a decade, one scenario dominated research informing discussions of climate among scientists and decision makers. Called RCP8.5, today that…
By Roger Pielke Jr. | April 10, 2025
Money grabs by politicians and ideological interest groups are nothing new, but the spate of recent proposals for climate “Superfund” laws — attempting to blame and tax the fossil energy…
By Benjamin Zycher | April 9, 2025
Last month, climate scientist Kate Marvel, of NASA, shared “something I have really struggled with” about extreme event attribution. She was speaking as an invited expert in a public information-gathering session of…
By Roger Pielke Jr. | April 7, 2025
Who uttered the quote that is the title of this post? A prominent climate activist, perhaps? Or maybe, a progressive Democratic member of Congress? No and no. The quote comes…
By Roger Pielke Jr. | March 31, 2025
The International Energy Agency has just published its Global Energy Review 2025. In this post I share the five most important take-aways I see in the report. I encourage you to…
By Roger Pielke Jr. | March 27, 2025
The DC Court that heard the defaation case brought by climate scientist Michael Mann against two bloggers has ruled today that Mann and his lawyers acted in “bad faith” during the case,…
By Roger Pielke Jr. | March 12, 2025
I was a tenured full professor at the University of Colorado Boulder for almost 24 years. At the end of 2024, I left. Officially, it was a voluntary departure. But I…
By Roger Pielke Jr. | March 12, 2025
I was speaking to a non-US non-climate beat reporter yesterday about undeniable issues of scientific integrity in climate science and he asked a question about the climate science community that…
By Roger Pielke Jr. | March 5, 2025
Earlier today, The Washington Post reported that head of the Environmental Protection Agency (EPA), Lee Zeldin, has urged the Trump administration to rescind the EPA’s 2009 “endangerment finding” on greenhouse gases. The Post reports:…
By Roger Pielke Jr. | February 27, 2025
An important new paper published this week in Nature Communications looks at the historical record of fire in North America — A fire deficit persists across diverse North American forests despite recent increases…
By Roger Pielke Jr. | February 12, 2025