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Charlie Koven

@ckoven

Climate and carbon cycle scientist. I help make computer models of the biosphere and experiment on them so that we don't have to on the real one. https://scholar.google.com/citations?user=fB5Lnz4AAAAJ

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29.07.2023
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Latest posts by Charlie Koven @ckoven

Science and Vaccines yes, war and king no

Science and Vaccines yes, war and king no

Save NCAR

Save NCAR

There is no future without science

There is no future without science

Evidence Based Outrage

Evidence Based Outrage

SF Stand Up For Science, a few of the signs.

07.03.2026 22:56 πŸ‘ 14 πŸ” 8 πŸ’¬ 1 πŸ“Œ 0
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Congrats to BART rider and Oakland legend Alysa Liu on winning a gold medal at the Olympics and making the Bay Area proud!

19.02.2026 22:21 πŸ‘ 7606 πŸ” 1074 πŸ’¬ 46 πŸ“Œ 132

Someone without a science degree or any science research experience nominated to be in charge of NSF.

19.02.2026 02:18 πŸ‘ 11 πŸ” 4 πŸ’¬ 1 πŸ“Œ 0
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Illegal miners have forced Peru’s oldest environmental research station to suspend work Staff at the Panguana biological research station have received death threats

My latest for @science.org. - Illegal miners have forced Peru’s oldest environmental research station to suspend work.
Gold mining has so far led to the deforestation of 140,000 ha of Amazonian rainforest in Peru - about half the size of Yosemite National Park
www.science.org/content/arti...

16.01.2026 20:15 πŸ‘ 28 πŸ” 18 πŸ’¬ 0 πŸ“Œ 0
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Trump's Climate Supercomputer Plans Threaten US Insurance Market: Actuaries A new letter from the American Academy of Actuaries draws a direct line between the planned dismantling of NCAR and higher homeowners insurance costs for US consumers.

Need more industries to speak up against the attacks on NCAR.

www.riskmarketnews.com/trumps-clima...

16.02.2026 23:38 πŸ‘ 23 πŸ” 11 πŸ’¬ 1 πŸ“Œ 1

It is hard to watch NSF bow so easily to their destroyers.

Vannevar Bush formed the NSF out of the US response to the fascists in WWII.

13.02.2026 03:25 πŸ‘ 155 πŸ” 54 πŸ’¬ 4 πŸ“Œ 0

The federal government is setting itself up to be on the wrong end of the biggest lawsuit in history.

10.02.2026 14:37 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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What Americans Lose If Their National Center for Atmospheric Research Is Dismantled - Eos Five ways dismantling NCAR will cost the American people, and two ways to save it.

NCAR represents what is possible when a nation chooses to invest in science as a public good, writes @carlonimbus.bsky.social of @ucs.org. #SaveNCAR eos.org/opinions/wha...

27.01.2026 14:48 πŸ‘ 171 πŸ” 98 πŸ’¬ 1 πŸ“Œ 5

We knew the NSF letter about NCAR would come. I think this is an occasion that will require great coordination and strategical thinking. UCAR should respond as a block, coordinating a response across universities (especially in the South, and large public universities that use NCAR data a lot)

24.01.2026 02:18 πŸ‘ 19 πŸ” 6 πŸ’¬ 2 πŸ“Œ 0

I would strongly encourage those who value the scientific & societal legacies of NCAR to offer feedback by March 13. I would expect, under present circumstances, perspectives from industry partners will be especially critical, though everyone's voice is of course important.

23.01.2026 21:57 πŸ‘ 146 πŸ” 55 πŸ’¬ 4 πŸ“Œ 0
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AGU statement on US withdrawal from climate and environmental organizations and treaties The Trump Administration’s announcement that the United States will withdraw from a multitude of international organizations and treaties that support global cooperation on climate and environmental i...

This week, the Trump Administration announced it's decision to withdraw from international organizations and treaties that support global cooperation on climate and environmental issues, a huge setback for global science. Read AGU's full statement:

news.agu.org/press-releas...

09.01.2026 20:57 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 1

someone needs to get him on the phone, quick!

09.01.2026 17:59 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The federal govt may be burning global cooperation on climate science to the ground, but we can and are pushing back where we can. We have more than 70 US scientists currently on IPCC reports, with more to be selected this month for CDR methods report. The USAA-IPCC coalition is up for this fight.

08.01.2026 14:38 πŸ‘ 14 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Trump Pulls Out of Global Climate Treaty

So this is how they’ve chosen to mark the one year anniversary of the Los Angeles fires.

08.01.2026 04:34 πŸ‘ 10 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
SULI Key Dates | U.S. DOE Office of Science (SC) The page provides the information about SULI Key Dates.

The deadline for DOE's SULI (Science Undergraduate Laboratory Internship) summer 2026 program is in TWO DAYS: science.osti.gov/wdts/suli/Ke... Are you an undergraduate interested in STEM? Apply!

05.01.2026 14:22 πŸ‘ 6 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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The expected 2.5 ft above normal high tide on Saturday morning hasn't been seen since 1998 https://x.com/NWSBayArea/status/2007014464575660329

02.01.2026 09:05 πŸ‘ 8 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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The Storytelling We Need to Rebuild Belief in Government - emptywheel As we look ahead to the new year, we need to figure out ways to tell the story of the damage Trump caused so we can hold him accountable.

The Storytelling We Need to Rebuild Belief in Government

www.emptywheel.net/2025/12/22/t...

22.12.2025 15:51 πŸ‘ 188 πŸ” 74 πŸ’¬ 7 πŸ“Œ 3
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Please read

www.forbes.com/sites/marsha...

19.12.2025 02:03 πŸ‘ 146 πŸ” 70 πŸ’¬ 0 πŸ“Œ 5
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Bravo to the #AGU25 protestor out in front of the entrance to the convention center this am

17.12.2025 18:58 πŸ‘ 15 πŸ” 3 πŸ’¬ 0 πŸ“Œ 1

NCAR’s Mesa Lab is literally a science castle dedicated to understanding our planet in an open and collaborative way, and leading the world in that effort. We cannot let this happen.

17.12.2025 16:02 πŸ‘ 52 πŸ” 27 πŸ’¬ 0 πŸ“Œ 0
Trump moves to dismantle major US climate research center in Colorado The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.

The beautiful idea of NCAR, to improve understanding of our planet through a cooperative, shared and open intellectual team effort, is literally what has got me out of bed every morning for nearly two decades. This cannot, CANNOT be allowed to happen.

eu.usatoday.com/story/news/p...

17.12.2025 07:39 πŸ‘ 70 πŸ” 32 πŸ’¬ 0 πŸ“Œ 3

A deeply dangerous β€” and blatantly retaliatory action against Colorado β€” by the Trump administration.

NCAR is one of the most renowned scientific facilities in the WORLD β€” where scientists perform cutting-edge research everyday.

We will fight this reckless directive with every legal tool we have.

17.12.2025 03:23 πŸ‘ 1200 πŸ” 436 πŸ’¬ 40 πŸ“Œ 25

They’re stealing from us. They are stealing from us and we have to put a stop to this. This cannot stand.

17.12.2025 02:25 πŸ‘ 881 πŸ” 288 πŸ’¬ 13 πŸ“Œ 8

This wouldn't just be a national tragedy but a global one. Just mind-boggling vandalism.

17.12.2025 02:16 πŸ‘ 283 πŸ” 113 πŸ’¬ 17 πŸ“Œ 4
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This 15-story data tower in the heart of the Amazon collects vital climate data that is shared with Americans in California and across the country.

The Trump Administration can ignore reality and worsen the climate crisis, but California will never stop fighting for our future.

15.11.2025 17:02 πŸ‘ 2441 πŸ” 599 πŸ’¬ 74 πŸ“Œ 19
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1/2

We just published the Global Carbon Budget 2025, with a mix of bad news (CO2 emissions continue to grow) and encouraging news (35 countries saw emissions decline over the past decade while growing their economies).

Read the highlights in a short article:
theconversation.com/the-worlds-c...

13.11.2025 00:16 πŸ‘ 26 πŸ” 25 πŸ’¬ 1 πŸ“Œ 1
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How can we explore the future of the world's forests? Understanding the demography of their trees is key. In We took the new gen of global demographic vegetation models and held their roots to the observations. Thanks @annemarie-es.bsky.social for leading! nph.onlinelibrary.wiley.com/doi/10.1111/...

27.10.2025 07:12 πŸ‘ 58 πŸ” 26 πŸ’¬ 1 πŸ“Œ 1

MAJOR NEWS: @GavinNewsom signed SB 79, my bill allowing more housing near public transit β€” rail, subway, rapid bus.

It’s a huge step for housing in California. It’ll create more homes, strengthen our transit systems & reduce traffic & carbon emissions.

Thank you, Governor!

10.10.2025 16:37 πŸ‘ 3714 πŸ” 630 πŸ’¬ 85 πŸ“Œ 91
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Strong statement today from UC's Academic Senate:

03.10.2025 21:58 πŸ‘ 1113 πŸ” 369 πŸ’¬ 17 πŸ“Œ 25

Mr. Bob is a true local hero of street safety, and it is so infuriating that he was attacked in this latest instance of senseless car violence. I really hope he makes a full recovery.

19.09.2025 17:23 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0