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petergleick.bsky.social
Climate, water, environmental security scientist, birds, mandolin. Member US National Academy of Sciences, MacArthur Fellow, Carl Sagan Prize, author of The Three Ages of Water (2023). Also on Mastodon. @[email protected]
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Posts 38 Comments 12

If you still have a local newspaper, write a letter to the editor on a current topic. You'll be surprised how often a good, short, timely letter will get accepted.

submitted 3 hours ago • 7 comments

Well, the facts ARE pretty clear. #climatechange

submitted 4 hours ago • 2 comments

My wife and I were vaccinated with MMR (measles, mumps, rubella vaccine) as children. Those vaccines saved millions of lives. We just were tested to see if our immunity is still good. Hers is low or gone, so a booster is needed. Get checked and boosted, if necessary. www.pbs.org/newshour/hea...

submitted 4 hours ago • 6 comments

Is there a pool going on how long before Trump does the Nazi sieg heil salute? Tomorrow? A few days?

submitted 4 hours ago • 4 comments

The chairman of the Joint Chiefs and the Chief of Naval Operations were hired because they were superbly qualified, not because of DEI. But they were fired because they were black and a woman. That's racism and sexism. Call it what it is.

submitted 11 hours ago • 3 comments

Today’s Oaxaca, Mexico wall art. The world understands.

submitted 13 hours ago • 2 comments

Is this what happens when AI starts to write your fortune-cookie fortunes?

submitted 12 hours ago • 4 comments

Shutting down already installed infrastructure isn't "efficiency," it's sabotage electrek.co/2025/02/21/t...

submitted 1 day ago • 18 comments

As Gernot Wagner said over on Mastodon, Shutting down already installed infrastructure isn't "efficiency," it's sabotage. electrek.co/2025/02/21/t...

submitted 1 day ago • 21 comments

Climate change is real. There are only three options: 1. Reduce climate-damaging pollution 2. Adapt to unavoidable climate impacts 3. Suffer. By denying and misrepresenting the science and by cutting science and disaster funds, Trump and the Republicans have chosen the third option.

submitted 1 day ago • 10 comments

Bullshit euphemisms. "questionable salute" "controversial salute" "provocative gesture" Say it. These are Nazi salutes. Why did Bannon seig heil? Because he's a Nazi and because the press let Musk get away with the same thing by not calling it what it is. www.thedailybeast.com/bannon-does-...

submitted 1 day ago • 13 comments

Stop with the bullshit euphemisms. This is a Nazi salute. You know it. They know it. There's simply no "benefit of the doubt" to give.

submitted 1 day ago • 14 comments

The US pulling out of the IPCC will have zero effect on the reality of #climate change, zero effect on the science updates reported by the IPCC, and simply weaken US science and respect globally. www.axios.com/2025/02/20/u...

submitted 1 day ago • 4 comments

CPAC is now just an open Nazi rally, and every "conservative" or Republican who doesn't publicly condemn it is a Nazi or a sympathizer. There are just no more excuses.

submitted 1 day ago • 11 comments

Steve Bannon, after calling for Trump to be President for life, did a Nazi salute on stage at CPAC. Nazism has officially taken over the GOP. The few remaining conservatives have a choice: either leave the party and obstruct it—or choose to be complicit.

submitted 2 days ago • 104 comments

December 7, 1941. President Trump blames US for starting war with Japan. Refuses to send aid to Britain unless they sell us Ireland and Scotland.

submitted 2 days ago • 3 comments

Did you know that the United States has approximately 59.5 million acre-feet per year of urban stormwater runoff potential? This is equivalent to an annual average of more than 53 billion gallons per day. Learn more in #UntappedWaterPotential: pacinst.org/publication/...

submitted 2 days ago • 0 comments

How odd. My climate scientist colleagues and I have files full of actual death threats (as opposed to the colorful comments described here) and the Justice Department has never sent a letter to our attackers following up.

submitted 2 days ago • 5 comments

Dear Republicans, Are you all really ok with Trump unilaterally surrendering to Russia? Your silence says you are.

submitted 3 days ago • 10 comments

You want to know why I support DEI efforts? 1. I understand and acknowledge the long history of severe racist and sexist discrimination. 2. I understand and support explicit efforts to overcome and correct that sordid history. 3. I'm not an asshole.

submitted 2 days ago • 9 comments

Trump's Pentagon just called climate change "woke" but four decades of defense and intelligence assessments have consistently identified climate change as posing serious threats to US national security and the operations of US military assets. www.gleick.com/blog/a-histo...

submitted 2 days ago • 2 comments

#carbon biogeochemistry & #climate scientists: a paper from 2022 that was retracted for MANY reasons has found a new home & is more extreme than the prior version. Time for experts to speak out & correct the peer-reviewed record on this topic (again). ascelibrary.org/doi/10.1061/... 🧪🌎💧

submitted 2 days ago • 1 comment

The US military/intelligence communities have acknowledged the threat climate change poses to US national security since the 80s. Trump will censor that fact That won't change the science. It WILL worsen the safety of the nation & effectiveness of our armed forces. www.gleick.com/blog/a-histo...

submitted 3 days ago • 1 comment

The opposite of DEI is NOT "color-blind, hire-the-best-qualified." It's "continue to hire the incompetent white male just because he's a white male." And the entire Trump administration proves that point.

submitted 3 days ago • 8 comments

The king has lost his crown.

submitted 3 days ago • 256 comments

Tomorrow, I'm giving a free webinar about the scientific consensus on climate change. It's part 1 of a 2-part series (part 1 on the history of consensus, part 2 on countering misinformation about consensus). The event is organised by RepublicEN, you can register at republicen.org/consensus

submitted 3 days ago • 0 comments

Dear Republicans, Are you all really ok with Trump unilaterally surrendering to Russia? Your silence says you are.

submitted 3 days ago • 10 comments

Reagan "won" the Cold War. Trump just unilaterally surrendered America to Russia. For nothing.

submitted 3 days ago • 9 comments

The US military/intelligence communities have acknowledged the threat climate change poses to US national security since the 80s. Trump will censor that fact That won't change the science. It WILL worsen the safety of the nation & effectiveness of our armed forces. www.gleick.com/blog/a-histo...

submitted 3 days ago • 1 comment

My interview on the PBS News Hour this evening. #californiawater www.pbs.org/newshour/sho...

submitted 4 days ago • 5 comments

I'm a scientist because 52 years ago the National Science Foundation supported me, as a high school student, to do real research at a university summer science program. The destruction of US science by Trump and the Republicans today will weaken the country for decades.

submitted 3 days ago • 7 comments

These are war crimes under the Geneva Convention and its 1977 Additional Protocols. qudsnen.co/oxfam-israel...

submitted 3 days ago • 7 comments

A good interview with Peter Gleick.

submitted 3 days ago • 0 comments

My interview on the PBS News Hour this evening. #californiawater www.pbs.org/newshour/sho...

submitted 4 days ago • 5 comments

Some pictures from the anti-oligarch, anti-fascist, pro-democracy San Francisco protests February 17. (Credit. C.Baskett 2025)

submitted 4 days ago • 7 comments

Musk, Trump, and the Republicans want your personal tax and banking information, wants to cut trillions in taxes for the uber-rich, but Musk doesn't pay taxes himself. Steal from the poor, give to the rich. itep.org/tesla-report...

submitted 4 days ago • 1 comment

I am not making this up: Republicans have introduced legislation… to increase your bank fees.

submitted 4 days ago • 1217 comments

Want to go visit the national parks this year? Sorry. The reservation system is shut down, EMT personnel are gone, so don't get hurt or lost. No one can clean the bathrooms or cabins, so they'll be closed. Rangers are fired. www.sfchronicle.com/bayarea/arti...

submitted 5 days ago • 845 comments