Historian. Author. Professor. Budding Curmudgeon. I study the contrast between image and reality in America, especially in politics.

Climate scientist, juggler. Bikes etc. Blogging at https://www.realclimate.org - data visualization, explainers, and debunking.

Scientist/Author/Speaker; Presidential Distinguished Prof/Director Center for Science, Sustainability & the Media, U. Penn; National Academy of Sciences; Royal Society; Tyler Prize

Climate scientist and writer. Theoretical astrophysicist by training. Avowed Earth supremacist. My book HUMAN NATURE is out now https://shorturl.at/aJRYb

Director, Agriculture Initiatives, World Resources Institute. Working with colleagues around the world to create a sustainable food future. DC-based. Own views.

Climate, extinction, and biodiversity scientist researching Earth’s past for a better future. Writing and podcasting for the planet. Chaotic good professor. Forever DM. Working to be a good ancestor. She/her. @makeaplanetpod.bsky.social‬

Bodybuilder. Conan. Terminator. Former Governor. I killed the Predator. I told you I’d be back. Join my positive corner of the internet - Arnold’s Pump Club.

Entrepreneur Costplusdrugs.com

Ex NY Times, now author of Substack Paul Krugman. Nobel laureate and, according to Donald Trump, "Deranged BUM"

Magazine writer and editor. Lover of poker and the Red Sox.

official Bluesky account (check username👆) Bugs, feature requests, feedback: support@bsky.app