Erin Pettit

Girls* in Icy Fjords: Deadline extended - now February 16.
See inspiringgirls.org

Thwaites Glacier Calving A tough shot to get

@milesobrien.com in an optimal position to observe/document THE active process at the front of #ThwaitesGlacier. Quite a video!

2026 GRISO Summer School Application Thank you for your interest in attending the GRISO 2026 Summer School in Nuuk, Greenland, May 18 - 29, 2026. The theme is A Collaborative Future: Strengthening Science & Connections in Greenland. The ...

Sharing a #Greenland opp for #cryosphere PhD and Postdoc researchers. Theme A Collaborative Future: Strengthening Science & Connections in Greenland. Apps due Jan 21! Greenland Ice Sheet Ocean Science (GRISO) Network Summer School in Nuuk. May 18-29, 2026.
docs.google.com/forms/d/e/1F...

We want to put together a team of varied interests (sci/art, more), varied backgrounds and lived experiences, varied geography, and more.

Our expeditions are not just for the straight-A students - we want to find the teens whose lives will be most impacted.

All high school teachers out there! @nestanet.bsky.social @nagtgeo.bsky.social #NSTA #ScienceEducation #TeacherCommunity #STEMEducation

Inspiring Girls* Expeditions is an international organization. We've been running expeditions since 1999.
Girls in Icy Fjords is hosted by the PNW branch which is a program of @oregonstate.edu. We especially want participants from Oregon @orscitchr.bsky.social

Please share with everyone you know who connects with teens or high school teachers. This is a free program intended to reach those who don't have as many opportunities. Girls in Icy Fjords is open to teens from all over North America.

Melting Glaciers Mix Up Waters More Than We Thought - Eos Existing theory underestimates the mixing of freshwater and seawater by up to 50%.

Up-close view of freshwater plumes rising at the glacier terminus. So much going on near glaciers, thanks to robotic boats for safely getting the data.
eos.org/research-spo...

“Protecting Greenland's ice is the most important piece of national security and global security you can imagine. It's not critical minerals. It's not military strategy. It's keeping that ice frozen.” - Longtime climate researcher Paul Bierman.

Watch the rest: revkin.substack.com/p/tonight-me...

Super cool research. Small ice domes aside the big ice sheets often don’t get the attention they deserve.

The Influence of Ice Coverage, Calving, and Melt on Underwater Ambient Sound in a Glacierized Fjord K-means clustering, a machine-learning tool, can categorize ambient sound in glacier fjords into five prototypes linked to glacier activity An 8-month acoustic data set shows glacier and ice-méla...

Do you wonder what a glacier fjord sounds like underwater? Calving icebergs melting ice, melange, and more. Check out our new paper! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Bound for Antarctica: A Voyage to Earth’s End Is Underway

Thwaites Glacier continues to surprise us, good luck to friends headed there now! Thanks for reporting, Raymond @zhonggg Bound for Antarctica: A Voyage to Earth’s End Is Underway www.nytimes.com/2025/12/27/c...

Arctic sees unprecedented heat as climate impacts cascade The Arctic has experienced its hottest year since records began, a US science agency announced Tuesday, as climate change triggers cascading impacts from melting glaciers and sea ice to greening lands...

Sad to see yet another year of record heat in the Arctic. More ice melting. phys.org/news/2025-12...

Grant cuts, arrests, lay-offs: Trump made 2025 a tumultuous year for science How the Trump administration caused seismic disruptions to the world’s premier scientific superpower.

Grant cuts, arrests, lay-offs: Trump made 2025 a tumultuous year for science www.nature.com/articles/d41... 🧪

I had a lovely conversation with Flora from NPR Science Friday this week about the sounds glaciers make! www.sciencefriday.com/person/erin-... #glaciology

Miocene and Pliocene ice and air from the Allan Hills blue ice area, East Antarctica | PNAS Antarctic ice cores provide a unique archive of Earth’s atmosphere and its largest extant ice sheet. The oldest continuous ice core extends back 80...

Amazing COLDEX.org results - 6Million year old ice, with bubbles of old atmosphere. Thank you ice, for the stories you share about our planet and its climate. Led by Sarah Shakleton #glaciology #womeninstem #cryosphere #Antarctica

www.pnas.org/doi/10.1073/...

news.oregonstate.edu/news/six-mil...

How Soon Will the Seas Rise? | Quanta Magazine The uniquely vulnerable West Antarctic Ice Sheet holds enough water to raise global sea levels by 5 meters. But when that will happen — and how fast — is anything but settled.

I was interviewed for this great piece about sea level rise.
Solid reporting here on the scientific controversy, but I like that Evan ended with my bigger picture quote that a lot of the controversy doesn't really matter because by 2100, we will be talking about a radically different coastline.

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/...

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 ❤️

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...

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-...

New report concludes polar geoengineering is dangerous But curiosity-driven stupidity may take us there

Heh yes. Pretty much this.

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

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.

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

@cryotoons.bsky.social :)

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...

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...

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...

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

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

❄️ Ice is a critical mineral ❄️