Lightnews — Scholar-powered news

Erin Pettit @exploreice.bsky.social · 7h

Tidewater glacier calving events inspire awe and remind us to be humble. Turns out they also stir up fjord waters and amplify melt. New paper "Calving as a Source of Acute and Persistent Kinetic Energy to Enhance Submarine Melting..." ❤️glaciology agupubs.onlinelibrary.wiley.com/doi/10.1029/...

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Erin Pettit @exploreice.bsky.social · 7d

Jane Goodall inspired so many of us. I was fortunate to get to stand next to her as she won a lifetime achievement award from Wings Women of Discovery at the same ceremony I won their Earth Award. Thank you @wingswod.bsky.social ❤️

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Reposted by Erin Pettit

Jessica Tierney @leafwax.bsky.social · 22d

The special issue @quantamagazine.bsky.social on Climate Science just dropped and I know what my weekend readings is gonna be 👍🏻 www.quantamagazine.org/how-we-came-...

How We Came To Know Earth | Quanta Magazine

Climate science is the most significant scientific collaboration in history. This series from Quanta Magazine guides you through basic climate science — from quantum effects to ancient hothouses, from...

www.quantamagazine.org

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Reposted by Erin Pettit

Ruth Mottram @ruthmottram.bsky.social · 27d

Heh yes. Pretty much this.

www.technosphere.earth/new-report-c...

New report concludes polar geoengineering is dangerous

But curiosity-driven stupidity may take us there

www.technosphere.earth

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Reposted by Erin Pettit

Paul Voosen @voosen.me · Aug 29

The NSF-funded Arctic Research Consortium of the United States (ARCUS) will shut down at the end of Sept. ARCUS has been around since the late 80s; in recent years their staff had dwindled, and NSF said earlier this year that their grant would not be renewed. Another blow to polar science.

ARCUS Monthly Report - August 2025

mailchi.mp

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Erin Pettit @exploreice.bsky.social · Aug 20

If you are in Portland this week, visit the Blackfish Gallery to see Myra Clark's Antarctic artwork.
And especially come this Friday Aug 22 at 5:30pm to hear Myra and I have a conversation about art and science in Antarctica.
www.myrawclark.com
#glaciology #sciart #antarctica

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Erin Pettit @exploreice.bsky.social · Jul 1

@cryotoons.bsky.social :)

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Erin Pettit @exploreice.bsky.social · Jul 1

In NW Greenland the ice flows across a giant impact crater. See what's happening at the bed!! #glaciology #greenland #PlanetaryScience dx.doi.org/10.1029/2024...

Seismic Evidence of Impact Breccia and Unlithified Sediments Under Hiawatha Glacier

Seismic evidence shows that impact melt-bearing breccia and unlithified sediments lie on the floor of Hiawatha Crater Glacier fringe sediment content can non-negligibly change seismic reflectivit...

dx.doi.org

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Erin Pettit @exploreice.bsky.social · Jun 9

How does glacier ice 🧊melt 🔥in the ocean? 🌊 Check out our team’s paper - led by student Kaelan Weiss)!! ❄️ agupubs.onlinelibrary.wiley.com/doi/10.1029/...
#glaciology #arctic #antarctica #cryosphere #fluiddynamics #cryosphere #climate

Direct Measurement of Glacier Ice Melt: Boundary Layer Details Are Critical for Submarine Melt Prediction at Near‐Vertical Ice Faces

Ice-ocean boundary layer forcing varies on short timescales; flow unsteadiness appears to enhance melt rate Observed flows violate steady shear assumptions of ice-ocean models, which underpredict...

agupubs.onlinelibrary.wiley.com

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Erin Pettit @exploreice.bsky.social · May 31

I’m in the same boat this weekend… Trying to find inspiration to power through.

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Erin Pettit @exploreice.bsky.social · May 31

❄️ Ice is a critical mineral ❄️

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Erin Pettit @exploreice.bsky.social · May 31

Sad.

Erin Pettit @exploreice.bsky.social · May 29

How do you forecast flash floods? What about clouds? Tune in to weather and climate livestream! So much of what we need to rely on is and has been funded by our federal government, for a long time - let’s keep that work going. www.youtube.com/@wclivestream

The Weather & Climate Livestream

From May 28th to June 1st, join meteorologists and climate scientists from across the US for a 💯-hour livestream! We will share our science and show why America's forecasts are worth saving. [Photo: N...

www.youtube.com

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Reposted by Erin Pettit

Melaine Le Roy @subfossilguy.bsky.social · May 28

A symbolic heart drawn yesterday by 300 children from the valley, at the estimated location of the Mer de Glace front in 2035... 😢

Glaciers need actions more than symbols.

Human need symbols to tell themselves that they have control over their lives 🤍

📷 Cie Guides Chamonix / IG

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Erin Pettit @exploreice.bsky.social · May 26

Share!

Erin Pettit @exploreice.bsky.social · May 26

May 28-June 1: Livestream 100 HOURS TO SAVE AMERICA'S FORECASTS. Weather and climate scientists share why forecasts are vital to all of us - from hurricanes to droughts to arctic sea ice and much more - wclivestream.com

The Weather & Climate Livestream

Join us starting May 28th, as meteorologists and climate scientists from across the US share their research and answer your questions.

wclivestream.com

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Bill McKibben @billmckibben.bsky.social · Apr 11

The world knows about climate change mostly because of great American researchers, and that work has been largely centered at NOAA.
Trump and Musk are now shutting down that brilliant work. They are contemptible, short-sighted, and sold out
www.science.org/content/arti...

Trump seeks to end climate research at premier U.S. climate agency

White House aims to end NOAA’s research office; NASA also targeted

www.science.org

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Reposted by Erin Pettit

Melaine Le Roy @subfossilguy.bsky.social · Apr 11

Mer de Glace
1969 | 2024

We are a world away from the 20th century climate, already in uncharted territories, and that's just the beginning! 😱

Losing glaciers through sole human emission should make us take action 🛑

But we are apathetic...

📷 @glacionaut / IG

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Erin Pettit @exploreice.bsky.social · Apr 6

A year after foot surgery, I happy to say I ran (and finished) the Corvallis half marathon today! Then kept on marching for the afternoon.

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Erin Pettit @exploreice.bsky.social · Apr 2

South Cascade Glacier in Washington is a glacier that is close to my heart and soul as a glaciologist. This #glacier taught me a lot about myself, about the vulnerability of glaciers to change, and more. It was the site of the first Girls on Ice 👩‍🔬Exp in 1999. wgms.ch/goy_2025/ #glaciology ❄️🥼

Glacier of the Year – world glacier monitoring service

wgms.ch

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Erin Pettit @exploreice.bsky.social · Mar 19

This is about so much more than our summer hiking trips. www.nytimes.com/2025/03/13/t...

How Trump Cuts Could Change Your Summer Hiking Trip

The Bureau of Land Management, the Forest Service and the Fish & Wildlife Service manage more public lands than the Park Service. And their staffs have also been cut.

www.nytimes.com

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Erin Pettit @exploreice.bsky.social · Mar 8

That's what he thought - I was standing with him - total freak out moment, we both jumped!

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Erin Pettit @exploreice.bsky.social · Mar 7

The crunching noise happened when Keith grabbed a shovel out of the helicopter - terrifying! The pilot was out wandering around taking photos! Thanks for bringing this story back, Dan!

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Paul Voosen @voosen.me · Mar 4

My latest: The mass firings at NOAA can feel abstract. Here's what was lost at one research center -- the birthplace of climate modeling.

Fired staff became U.S. citizens to pursue these dream jobs, only to have their dreams upended.

NOAA firings hit the birthplace of weather and climate forecasting

Dismissed researchers were improving severe weather predictions

www.science.org

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SassyMetisChick @sassymetischick.bsky.social · Feb 14

The Indigenous People of North America have decided to go back to calling the Gulf of Mexico, “Chalchiuhtlicueyecatl”. It is what the Nahuatl People originally called it as it is the domain of the goddess Chalchiuhtlicue, who is assoc w/water bodies, including the Gulf of Mexico.

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