Today, in cool and cloudy Washington, DC, I’ll wrap up my AEI Summer Honors Course (THB Pro subscribers have access to the syllabus and the reading packet here). The students have…
By Roger Pielke Jr. | June 27, 2025
You’d be hard pressed to find a more fascinating straight line. The figure below is one of the most amazing graphs in all of climate policy.1 It shows the decarbonization of the U.S.…
By Roger Pielke Jr. | June 16, 2025
My AEI colleague Roger Pielke Jr. posted some useful observations recently on the politicized use of extreme greenhouse gas (GHG) scenarios for purposes of the usual climate scaremongering and support of policies…
By Benjamin Zycher | June 9, 2025
The implausibly extreme and hugely popular climate scenario RCP8.5 made it into President Trump’s executive order last week on “Restoring Gold Standard Science.” Ironically, the Trump administration’s characterization of RCP8.5…
By Roger Pielke Jr. | June 4, 2025
There has been no tropical cyclone of hurricane strength anywhere in the Northern Hemisphere so far in 2025. If we get to June 5th — which looks quite possible if…
By Roger Pielke Jr. | May 30, 2025
More than 7,000 years ago, humans first began mining copper. Since then, humans have mined more than 700 million tonnes. According to a fascinating study of the metals requirements of a…
By Roger Pielke Jr. | May 23, 2025
Last week, Tulsi Gabbard, appointed by President Trump as the Director of National Intelligence, fired the top two officials of the National Intelligence Council (NIC) after The Washington Post and the New York Times reported that…
By Roger Pielke Jr. | May 20, 2025
The figures and data below are all hot of the press and shared to help get your weekend off to an intellectually stimulating start. Enjoy! The Earth is Darkening In…
By Roger Pielke Jr. | May 19, 2025
One of the challenges, even for experts, in making sense of climate projections is that the scenarios underlying the projections are so complex as to be impenetrable without a lot…
By Roger Pielke Jr. | May 14, 2025
Last June, my peer-reviewed paper on problems with NOAA’s Billion Dollar Disaster (BDD) tabulation was published. Today, NOAA announced that the BDD tabulation would no longer be updated by the agency, explaining…
By Roger Pielke Jr. | May 9, 2025
Earlier this week the New York Post asked me to help its readers make sense of some surprising new research on ice dynamics at both poles. The new research appears in a…
By Roger Pielke Jr. | May 7, 2025
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