Aaron Cozen
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aaroncozen.bsky.social
Aaron Cozen
@aaroncozen.bsky.social
itinerant biologist
Reposted by Aaron Cozen
The Minnesota v. Noem hearing is beginning before Judge Katherine Menendez.

Minnesota, Minneapolis, and St. Paul are seeking a TRO today to stop Operation Metro Surge.
January 26, 2026 at 3:10 PM
Reposted by Aaron Cozen
January 26, 2026 at 12:31 AM
Reposted by Aaron Cozen
Good afternoon from downtown Chicago, where despite heavy snowfall, thousands have gathered for an anti-ICE/CBP demonstration in solidarity with the Twin Cities. More are still streaming in.

Lt. Illinois Gov. Juliana Stratton just addressed the crowd, and called for ICE to be abolished.
January 25, 2026 at 7:37 PM
January 25, 2026 at 7:16 AM
Reposted by Aaron Cozen
There we go:

“It should no longer be possible to say that the Trump administration seeks merely to govern this nation. It seeks to reduce us all to a state of constant fear… That is our new national reality. State terror has arrived.”

Gift link:
Opinion | State Terror Has Arrived
www.nytimes.com
January 25, 2026 at 1:20 AM
Reposted by Aaron Cozen
A coworker took this from her apartment. I haven't seen a crowd this size before. Maybe the first Women's March? But it was much much warmer that day. ICE OUT OF MINNESOTA!
January 23, 2026 at 11:19 PM
Reposted by Aaron Cozen
Attention folks in the weather, climate, disaster, wildfire, and Earth science communities: NSF has just published a new "Dear Colleague" letter inviting feedback (by Mar 13) on the proposal to dismantle the National Center for Atmospheric Research (NCAR). www.nsf.gov/funding/...
January 23, 2026 at 9:57 PM
Reposted by Aaron Cozen
Current temp in Minneapolis: -12°F (-24°C), -28°F wind chill (-33°C)

Thousands of people are congregating downtown for today's General Strike march against ICE. Thousands more are on their way.

Of course we are going to win.
On the ground in downtown Minneapolis for the ICE Out march.
January 23, 2026 at 8:06 PM
Reposted by Aaron Cozen
The kids and I helped pack food this morning for families who can't leave their homes due to the ICE occupation.

We did the math that there are somewhere between 2000 to 20,000 families that are sheltering at home right now. Which means they need thousands of food boxes a day. We're mobilized.
January 19, 2026 at 6:27 PM
“We now don’t have to speculate as to what American fascism looks like. It’s right outside the door.”
I went to Minneapolis last week. What I saw was horrifying and inspiring in equal measure. Gift link to my latest column: www.nytimes.com/2026/01/19/o...
Opinion | In Minneapolis, I Glimpsed a Civil War
www.nytimes.com
January 19, 2026 at 6:45 PM
Reposted by Aaron Cozen
I went to Minneapolis last week. What I saw was horrifying and inspiring in equal measure. Gift link to my latest column: www.nytimes.com/2026/01/19/o...
Opinion | In Minneapolis, I Glimpsed a Civil War
www.nytimes.com
January 19, 2026 at 12:56 PM
Reposted by Aaron Cozen
The way to avoid losing freedom is to use it, says Masha Gessen: “to claim all the room there still is for speaking, writing, publishing, protesting, voting. It’s what the people of Minnesota appear to be doing, and it’s something each of us needs to do — right now, while we still can.”
#giftlink
Opinion | One Year of Trump. The Time to Act Is Now, While We Still Can.
www.nytimes.com
January 18, 2026 at 12:42 PM
Reposted by Aaron Cozen
BREAKING: The controversial hepatitis B vaccine trial in Guinea-Bissau has been *cancelled,* I can now report. A senior official with Africa CDC confirmed the cancellation and said GB officials are working to make sure any research is conducted ethically:
www.theguardian.com/us-news/2026...
Controversial US study on hepatitis B vaccines in Africa is cancelled
$1.6m project drew outrage over ethical questions about withholding vaccines proven to prevent disease
www.theguardian.com
January 15, 2026 at 3:28 PM
Reposted by Aaron Cozen
Fine-particulate and ozone air pollution from fossil fuels causes 4-6 million avoidable deaths per year: 7-10% of all deaths worldwide. At an ~$11 million statistical value of life, this is a 44-66 trillion $/yr (38-56% of ~117 T$/yr global GDP) cost that appears nowhere in fossil fuel economics.
January 13, 2026 at 5:15 PM
Reposted by Aaron Cozen
The LA fires are probably your most vivid illustration of our new age of wildfire and all the devastation it promises. But were they even wildfires? The ignition wasn’t wild, the fuel wasn’t wild, the landscape wasn’t wildland and wildland firefighting couldn’t help. www.nytimes.com/2026/01/05/o...
Opinion | Which City Burns Next?
www.nytimes.com
January 5, 2026 at 4:14 PM
A 4th study not included in the Grist article found that in the 90 days after January's fires in LA emergency medical encounters increased by 24% for acute pulmonary illness, 46% for myocardial infarction (heart attacks), and 118% for blood chemistry abnormalities.

www.jacc.org/doi/10.1016/...
January 2, 2026 at 7:54 PM
Reposted by Aaron Cozen
3 studies:
1) January’s infernos in Los Angeles killed >440 once you factor in the smoke (official toll: 30).
2) Wildfire smoke kills 40,000 Americans a year, which could increase to 71,000 by 2050.
3) Canada’s wildfires in 2023 significantly worsened childhood asthma across the border in Vermont.
January 2, 2026 at 6:50 PM
December 21, 2025 at 5:36 PM
Reposted by Aaron Cozen
A second levee broke south of Seattle last night as our relentless parade of atmospheric rivers continues.

Thinking of the John Holdren quote that we have three options: mitigation, adaptation or suffering. The third is growing ever more apparent as progress lags on one and two.
#BREAKING: New drone video from Pacific, WA, on Tuesday morning following a levee failure on the White River at Pacific City Park. Whole neighborhoods are underwater as water continues flowing out of the failed levee. #wawx #flood #drone
December 16, 2025 at 8:19 PM
Reposted by Aaron Cozen
Unbelievable. This would be a terrible blow to American science, writ large. It would decimate not only climate research, but also the kind of weather, wildfire, and disaster research that has underpinned half a century of progress in prediction, early warning, and increased resilience.
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.
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.
bit.ly
December 17, 2025 at 2:49 AM
Reposted by Aaron Cozen
As a grant writer for environmental causes, I’ve seen first-hand how funding for the environment often takes a backseat to medical research and human services. This article helps demonstrate why this is a problem; the environment is a HUGE influence on public health and quality of life.
Scientists Thought Parkinson’s Was in Our Genes. It Might Be in the Water
New ideas about chronic illness could revolutionize treatment, if we take the research seriously.
www.wired.com
December 13, 2025 at 5:31 PM
Reposted by Aaron Cozen
Armed ICE agents trapped US citizens in a restaurant and demanded their papers. Federal agents walked into East African restaurants in Cedar-Riverside, MN. They closed and blocked the doors. Then they demanded to see everyone’s papers. Every person present was a US citizen.
Federal agents use chemical irritant on crowd in Somali neighborhood of Minneapolis amid Trump crackdown
Federal agents have used chemical irritant to disperse a crowd in a heavily Somali neighborhood in Minneapolis. This happened Tuesday during a identification checks amid the Trump administration's cra...
www.mprnews.org
December 14, 2025 at 5:54 PM
Reposted by Aaron Cozen
With support from Microsoft, Stripe, and Shopify, Running Tide billed itself as on the cutting edge of carbon removal. In the end, it resorted to dumping thousands of tons of wood chips in the sea. www.wired.com/story/how-th...
How the Next Big Thing in Carbon Removal Sunk Without a Trace
With support from Microsoft, Stripe, and Shopify, Running Tide billed itself as on the cutting edge of carbon removal. In the end, it resorted to dumping thousands of tons of wood chips in the sea.
www.wired.com
December 11, 2025 at 7:04 AM
Reposted by Aaron Cozen
It appears that the U.S. Environmental Protection Agency (EPA) has, within the past week, scrubbed a large amount of climate change content from its official website, as well as *removed human-caused warming* from the discussion on its "causes of climate change" page.
December 8, 2025 at 5:50 PM
Reposted by Aaron Cozen
TIL about a memorial ceremony in Iceland in 2019 to mark the end of a glacier, changing the place name from Okjökull to Ok (jökull = glacier). Uncompromising wording on the bronze plaque:
"This is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it".
December 7, 2025 at 5:17 PM