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Reposted by Aaron Putnam

Howard Lee @hlee.bsky.social · 10h

"we propose this Potassium-40 deficit represents primitive proto-Earth mantle domains that largely escaped mantle mixing after the [moon-forming] giant impact and exist in the present-day deep mantle, contributing to some modern hotspot volcanism" ⚒️
www.nature.com/articles/s41...

Potassium-40 isotopic evidence for an extant pre-giant-impact component of Earth’s mantle - Nature Geoscience

Some mafic rocks have a ⁴⁰K/³⁹K ratio lower than all other terrestrial samples, according to isotopic composition analyses, suggesting parts of Earth’s mantle have retained their composition prior to ...

www.nature.com

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Aaron Putnam @aaronputnam.bsky.social · 20h

Silver lining is that PWM security lines are mercifully short.

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Aaron Putnam @aaronputnam.bsky.social · 1d

Would love to hear Phish (or Disco Biscuits) cover The Golden Path by Flaming Lips/Chemical Bros.

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Reposted by Aaron Putnam

Carlos Moffat @carlosmoffat.com · 1d

Faculty and Student Unions understand that the only way through this is by university communities joining forces.

When will administrators listen?

Karl Jacoby @karl-jacoby.bsky.social · 1d

Student government leaders of MIT, UVA, U of AZ, Dartmouth, UPenn, Brown, and Vanderbilt united in their opposition to the "compact" proposed by the Trump administration.

Brendan Nyhan @brendannyhan.bsky.social · 1d

www.instagram.com/p/DPm507ljBJ...

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Aaron Putnam @aaronputnam.bsky.social · 1d

Thank you!

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Aaron Putnam @aaronputnam.bsky.social · 1d

Apple TV Maxintosh

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Aaron Putnam @aaronputnam.bsky.social · 1d

If you see this post a sunset.

Juneau Icefield, Alaska.

Sun setting behind mountain ridges of the Juneau Icefield. Sky is orange, and reflecting on the snowpack.

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Reposted by Aaron Putnam

Brian Stelter @brianstelter.bsky.social · 1d

Reps for CNN, Reuters, The AP, The New York Times, The Washington Post, The Atlantic and NPR all say that journalists from their newsrooms are not signing the new paperwork about Pentagon access. Newsmax says it doesn't intend to sign, either — a potentially significant sign of MAGA dissension.

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Aaron Putnam @aaronputnam.bsky.social · 1d

They can actually be a little cool, because the fan is constantly blowing outside air into the suit. It is probably a good idea to bundle up in cool weather…

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Aaron Putnam @aaronputnam.bsky.social · 1d

I hope to get some new material this Saturday and will be sure to post that 🙂.

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Aaron Putnam @aaronputnam.bsky.social · 1d

Potentially thousands of years of moraine stability, until now. The impact of ice loss on the valley walls and lateral moraines is akin to removing the flying buttresses from the walls of a cathedral.

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Aaron Putnam @aaronputnam.bsky.social · 1d

I attended his town hall in Brewer last week. He really knows how to connect with people.

And what other candidate can say that they are working to ‘unshuck the system’?

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Reposted by Aaron Putnam

Dr Scott J. Davidson @wetlandresilienceresearchgroup.com · 1d

🚨New Paper 🚨
The PeatPic Project: Predicting plot-scale green leaf #phenology across #peatlands

So happy to see this paper online — one of my favourite projects!

We explored how to capture how peatlands change colour using smartphones and community science!

iopscience.iop.org/article/10.1...

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Reposted by Aaron Putnam

Zack Labe @zacklabe.com · 1d

In contrast to the other side of the #Arctic, sea ice along the Atlantic front is a record low for this time of year. This relates to the recent record warmth and southerly winds/waves pushing the marginal ice zone closer to the North Pole.

Data from @nsidc.bsky.social (nsidc.org/data/seaice_...).

Graphic showing a line graph time series of daily Arctic sea ice extent in the Atlantic sector of the Arctic (Greenland + Barents + Kara Seas) for each year from 1979 to 2025. This year is shown in red. Purple to white color shading is used for each other year's line. There is a long-term decreasing trend for every day of the year.

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Aaron Putnam @aaronputnam.bsky.social · 1d

Thank you! To be more clear, the photo in question was not taken at a protest (I was aspiring to employ my frog costume at the next opportunity). But we are looking forward to Oct. 18th. 🙂

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Reposted by Aaron Putnam

PixelPusher @drpixelpusher.bsky.social · 2d

Stay strong! commonslibrary.org/defending-de...

Defending Democracy with Humor and Dilemma Actions Tactics

The Commons is an online library for the change makers of the world and for those interested in social change, activism, organising, advocacy and justice.

commonslibrary.org

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Aaron Putnam @aaronputnam.bsky.social · 2d

Sorry to be nostalgic, but I miss what this place was a couple of years ago when my feed was just @faineg.bsky.social and the occasional Alf discussion, etc.

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Aaron Putnam @aaronputnam.bsky.social · 2d

Lego-ish

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Aaron Putnam @aaronputnam.bsky.social · 2d

I attended the Brewer, Maine, town hall. Articulate, compassionate, perceptive. Multiple generations of veterans at the event. They anticipated 50 people and got 650. He’s got my vote.

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Reposted by Aaron Putnam

David Ho @davidho.bsky.social · 2d

The Trump regime's cuts to early carbon removal projects, like DAC hubs in Louisiana and Texas, cause industry uncertainty. Though the DOE says these projects aren't terminated, the risk of further cuts remains. This highlights the fragility of early projects and inconsistent government support.

Is Trump about to squash America’s carbon-removal moonshot?

Nascent direct-air-capture projects were hit with funding cuts last week. A new list has caused confusion over the fate of DAC hubs in Louisiana and Texas.

www.canarymedia.com

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Aaron Putnam @aaronputnam.bsky.social · 2d

I deleted a post of me in a frog suit with my 7-yr old daughter because a big account reposted, admonishing us for not being serious enough protestors (or something). I shouldn’t have included my daughter in the image, which was why I deleted it. But I was stunned by the condescension.

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Aaron Putnam @aaronputnam.bsky.social · 2d

Yup.

Aaron Putnam @aaronputnam.bsky.social · 2d

Haha - same here.

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Aaron Putnam @aaronputnam.bsky.social · 3d

Cym-bop and Bebaphone.

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Aaron Putnam @aaronputnam.bsky.social · 3d

Best SB Halftime Show Ever, thanks to Left Shark.

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