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Erin Pettit

@exploreice.bsky.social
596 followers 206 following 43 posts

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.

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Reposted by Erin Pettit
NPR @npr.org · 03/06/2026
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
n.pr
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.
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Erin Pettit @exploreice.bsky.social · 09/03/2026
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.
Tip of kayak with water and islands in distance.
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Erin Pettit @exploreice.bsky.social · 02/03/2026
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
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Erin Pettit @exploreice.bsky.social · 22/02/2026
On an Ambitious Antarctic Quest, One Nation Is on the Sidelines www.nytimes.com/2026/02/19/c...
nytimes.com
On an Ambitious Antarctic Quest, One Nation Is on the Sidelines
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Erin Pettit @exploreice.bsky.social · 06/02/2026
Girls* in Icy Fjords: Deadline extended - now February 16. See inspiringgirls.org
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Christine Siddoway @iphigenesdream.bsky.social · 20/01/2026
@milesobrien.com in an optimal position to observe/document THE active process at the front of #ThwaitesGlacier. Quite a video!
milesobrien.substack.com
Thwaites Glacier Calving
A tough shot to get
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Reposted by Erin Pettit
Christine Siddoway @iphigenesdream.bsky.social · 17/01/2026
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...
docs.google.com
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 ...
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Erin Pettit @exploreice.bsky.social · 13/01/2026
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...
eos.org
Melting Glaciers Mix Up Waters More Than We Thought - Eos
Existing theory underestimates the mixing of freshwater and seawater by up to 50%.
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Reposted by Erin Pettit
Andy Revkin 🌎 ✍🏼 🪕 ☮️ revkin.substack.com @revkin.bsky.social · 12/01/2026
“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...
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Erin Pettit @exploreice.bsky.social · 07/01/2026
Super cool research. Small ice domes aside the big ice sheets often don’t get the attention they deserve.
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Erin Pettit @exploreice.bsky.social · 02/01/2026
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/...
agupubs.onlinelibrary.wiley.com
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...
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Erin Pettit @exploreice.bsky.social · 27/12/2025
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...
nytimes.com
Bound for Antarctica: A Voyage to Earth’s End Is Underway
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Erin Pettit @exploreice.bsky.social · 17/12/2025
Sad to see yet another year of record heat in the Arctic. More ice melting. phys.org/news/2025-12...
phys.org
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...
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Reposted by Erin Pettit
Dr. Dawn Wright @deepseadawn.bsky.social · 15/12/2025
Grant cuts, arrests, lay-offs: Trump made 2025 a tumultuous year for science www.nature.com/articles/d41... 🧪
nature.com
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.
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Erin Pettit @exploreice.bsky.social · 11/12/2025
I had a lovely conversation with Flora from NPR Science Friday this week about the sounds glaciers make! www.sciencefriday.com/person/erin-... #glaciology
sciencefriday.com
Erin Pettit
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Erin Pettit @exploreice.bsky.social · 29/10/2025
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...
pnas.org
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...
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Reposted by Erin Pettit
Jeremy Bassis @bassisjeremy.bsky.social · 20/10/2025
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.
quantamagazine.org
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.
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Erin Pettit @exploreice.bsky.social · 09/10/2025
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 · 01/10/2025
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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Jessica Tierney @leafwax.bsky.social · 17/09/2025
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-...
quantamagazine.org
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...
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Reposted by Erin Pettit
Ruth Mottram @ruthmottram.eurosky.social · 12/09/2025
Heh yes. Pretty much this. www.technosphere.earth/new-report-c...
technosphere.earth
New report concludes polar geoengineering is dangerous
But curiosity-driven stupidity may take us there
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Paul Voosen @voosen.me · 29/08/2025
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.
mailchi.mp
ARCUS Monthly Report - August 2025
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Erin Pettit @exploreice.bsky.social · 20/08/2025
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 · 01/07/2025
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...
dx.doi.org
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...
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Erin Pettit @exploreice.bsky.social · 09/06/2025
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
agupubs.onlinelibrary.wiley.com
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...
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Erin Pettit @exploreice.bsky.social · 31/05/2025
❄️ Ice is a critical mineral ❄️
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Erin Pettit @exploreice.bsky.social · 31/05/2025
Sad.
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Erin Pettit @exploreice.bsky.social · 29/05/2025
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
youtube.com
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...
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Melaine Le Roy @subfossilguy.bsky.social · 28/05/2025
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 · 26/05/2025
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
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.
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Bill McKibben @billmckibben.bsky.social · 11/04/2025
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...
science.org
Trump seeks to end climate research at premier U.S. climate agency
White House aims to end NOAA’s research office; NASA also targeted
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Melaine Le Roy @subfossilguy.bsky.social · 11/04/2025
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 · 06/04/2025
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 · 02/04/2025
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 ❄️🥼
wgms.ch
Glacier of the Year – world glacier monitoring service
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Erin Pettit @exploreice.bsky.social · 19/03/2025
This is about so much more than our summer hiking trips. www.nytimes.com/2025/03/13/t...
nytimes.com
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.
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Paul Voosen @voosen.me · 04/03/2025
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.
science.org
NOAA firings hit the birthplace of weather and climate forecasting
Dismissed researchers were improving severe weather predictions
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SassyMetisChick @sassymetischick.bsky.social · 14/02/2025
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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Inspiring Girls* Expeditions @inspiringgirls.bsky.social · 07/02/2025
Only TWO days left to apply for our Girls* on Rock and Girls* in Icy Fjords expeditions! inspiringgirls.org/apply!
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Inspiring Girls* Expeditions @inspiringgirls.bsky.social · 05/02/2025
The application deadline for our Girls* on Rock and Girls* in Icy Fjords expeditions -- hosted by Girls* on Rock and Inspiring Girls* Expeditions Pacific Northwest -- is approaching fast! Start your application at inspiringgirls.org/apply, and make sure to submit by February 9, 2025!
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Erin Pettit @exploreice.bsky.social · 02/02/2025
❄️🥼❄️ Tuition free journey through glacier landscapes using science and art for teens. share!! #science #womeninstem #sciart #kayaking #nationalparks #scienceforkids #outdoorlearning
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Erin Pettit @exploreice.bsky.social · 13/01/2025
Please share with teens or anyone you know who work with teens! #girlsinstem #glaciology #sciart #womeninstem #science this program is for teens willing to challenge themselves (**not** for just top performing students - we are open, no need to be a science or art geek either, just willing to try)
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Inspiring Girls* Expeditions @inspiringgirls.bsky.social · 13/01/2025
Inspiring Girls* Expeditions hosts tuition-FREE, multi-day expeditions for high school girls* that blend science, art, and backcountry travel. It’s not too late – apply for our summer 2025 expeditions today! Start your application at inspiringirls.org/apply.
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Erin Pettit @exploreice.bsky.social · 10/01/2025
I continue to lead Inspiring Girls over 25 yrs because I love watching each and every participant courageously step out of their comfort zone to discover what is possible - physically, intellectually, and socially. Society still underestimates girls* capabilities, let's change that cultural norm.
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Inspiring Girls* Expeditions @inspiringgirls.bsky.social · 10/01/2025
Introducing our Girls* on Rock expedition! Girls* on Rock is a rock-climbing adventure packed with (you guessed it!) rock climbing, arts and science workshops, backcountry camping, and more! Apply today at inspiringgirls.org/apply! 🧗‍♂️ Girls* on Rock applications are due February 9, 2025.
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Inspiring Girls* Expeditions @inspiringgirls.bsky.social · 07/01/2025
Inspiring Girls* Expeditions Social Media Day is this Friday, January 10th! 🎉 We’re inviting all Inspiring Girls* Expeditions alumni, staff, volunteers, and community members to share their experiences, spread the word about Inspiring Girls* Expeditions, and inspire others to get involved or apply.
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Erin Pettit @exploreice.bsky.social · 07/01/2025
Please share this life changing experience for 16/17 youth!! deadline Jan 30, 2025.
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Bethan Davies @iceybethan.bsky.social · 20/12/2024
I’m thrilled to bits to have been awarded the Richardson Medal by @igsoc.bsky.social. Thanks so much to all my wonderful colleagues and especially to those who nominated me! You’re all so kind. www.igsoc.org/about/awards...
igsoc.org
Bethan Davies (2024) | IGS
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Prof Andrew Mackintosh @andrewmackintosh.bsky.social · 21/12/2024
Congratulations to the amazing Dr Lauren Vargo for winning the @igsoc.bsky.social Early Career Scientist Award. Click here for further details bit.ly/49MORLq
Lauren, GPS set up, is ready to fly over the glaciers of Aotearoa / New Zealand
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Erin Pettit @exploreice.bsky.social · 20/12/2024
Especially fascinating for those of us ice deformation and rheology geeks- this will probably end up in my geodynamics class next fall. #glaciology
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