Erin Pettit
@exploreice.bsky.social
Glaciologist and Geophysicist, Professor at Oregon State University Curious about ice, landscapes, climate, and the world around me Always seeking creative ways to weave art, science, observation, and ideas together.
The White House Office of Management and Budget is moving to take more control of billions of dollars in federal grants. Critics say the proposed change would jeopardize the integrity of U.S. science. n.pr/4uNA78T
President Trump seeks control of science funding
The White House Office of Management and Budget is moving to take more control of billions of dollars in federal grants. Critics say the proposed change would jeopardize the integrity of U.S. science.
n.pr
Much appreciated time on water today. Happy International Women’s Day. So many amazing women in this world, let’s celebrate all of them every day.
As a glaciologist, it is strange to realize that I can't go back to visit many of my past field sites, the memories are there, the ice is gone or soon to be gone. #ThwaitesGlacier #climategrief #glaciers #Antarctica
Adrian Luckman@adrianluckman.bsky.social · 5mo agoThwaites Eastern Ice Shelf heading for collapse. Monthly average velocities Jan 2025 to Feb 2026 derived from EU Copernicus Programme Sentinel-1 SAR data. Grounding lines in black and yellow from NASA MEaSUREs
On an Ambitious Antarctic Quest, One Nation Is on the Sidelines www.nytimes.com/2026/02/19/c...
On an Ambitious Antarctic Quest, One Nation Is on the Sidelines
nytimes.com
@milesobrien.com in an optimal position to observe/document THE active process at the front of #ThwaitesGlacier. Quite a video!
Thwaites Glacier Calving
A tough shot to get
milesobrien.substack.com
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...
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 ...
docs.google.com
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...
Melting Glaciers Mix Up Waters More Than We Thought - Eos
Existing theory underestimates the mixing of freshwater and seawater by up to 50%.
eos.org
“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.
Nature Geoscience@natgeosci.nature.com · 7mo ago⚒️ Article: The ~500-meter-thick Prudhoe Dome in northwest Greenland completely deglaciated 7000 years ago, highlighting the sensitivity of the ice sheet to mid-Holocene warming www.nature.com/articles/s41...
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/...
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...
agupubs.onlinelibrary.wiley.com
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...
Bound for Antarctica: A Voyage to Earth’s End Is Underway
nytimes.com
Sad to see yet another year of record heat in the Arctic. More ice melting. phys.org/news/2025-12...
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...
phys.org
Grant cuts, arrests, lay-offs: Trump made 2025 a tumultuous year for science www.nature.com/articles/d41... 🧪
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.
nature.com
I had a lovely conversation with Flora from NPR Science Friday this week about the sounds glaciers make! www.sciencefriday.com/person/erin-... #glaciology
Erin Pettit
sciencefriday.com
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...
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...
pnas.org
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.
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.
quantamagazine.org
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 ❤️
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...
quantamagazine.org
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
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
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
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
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...
youtube.com
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
