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.
Always seeking creative ways to weave art, science, observation, and ideas together.
Pinned
Girls* in Icy Fjords: Deadline extended - now February 16.
See inspiringgirls.org
See inspiringgirls.org
Girls* in Icy Fjords: Deadline extended - now February 16.
See inspiringgirls.org
See inspiringgirls.org
February 6, 2026 at 4:39 PM
Girls* in Icy Fjords: Deadline extended - now February 16.
See inspiringgirls.org
See inspiringgirls.org
Reposted by Erin Pettit
@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
January 20, 2026 at 11:31 PM
@milesobrien.com in an optimal position to observe/document THE active process at the front of #ThwaitesGlacier. Quite a video!
Reposted by Erin Pettit
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/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
January 17, 2026 at 11:06 PM
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/forms/d/e/1F...
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/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
January 13, 2026 at 11:53 PM
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/research-spo...
Reposted by Erin Pettit
“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...
Watch the rest: revkin.substack.com/p/tonight-me...
January 12, 2026 at 3:16 AM
“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...
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.
⚒️ 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...
www.nature.com/articles/s41...
Deglaciation of the Prudhoe Dome in northwestern Greenland in response to Holocene warming - Nature Geoscience
The ~500-metre-thick Prudhoe Dome in northwestern Greenland completely deglaciated 7,000 years ago, highlighting the sensitivity of the ice sheet to mid-Holocene warming, according to luminescence and...
www.nature.com
January 7, 2026 at 12:28 AM
Super cool research. Small ice domes aside the big ice sheets often don’t get the attention they deserve.
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
January 2, 2026 at 11:16 PM
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/...
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
www.nytimes.com
December 27, 2025 at 5:50 PM
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...
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
December 17, 2025 at 5:42 AM
Sad to see yet another year of record heat in the Arctic. More ice melting. phys.org/news/2025-12...
Reposted by Erin Pettit
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.
www.nature.com
December 15, 2025 at 8:03 PM
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
Erin Pettit
www.sciencefriday.com
December 11, 2025 at 8:48 PM
I had a lovely conversation with Flora from NPR Science Friday this week about the sounds glaciers make! www.sciencefriday.com/person/erin-... #glaciology
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...
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...
www.pnas.org
October 29, 2025 at 3:19 PM
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...
www.pnas.org/doi/10.1073/...
news.oregonstate.edu/news/six-mil...
Reposted by Erin Pettit
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.
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.
www.quantamagazine.org
October 20, 2025 at 8:59 PM
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.
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/...
October 9, 2025 at 5:53 AM
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 ❤️
October 1, 2025 at 10:44 PM
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 ❤️
Reposted by Erin Pettit
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
September 17, 2025 at 1:07 AM
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-...
Reposted by Erin Pettit
Reposted by Erin Pettit
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
August 29, 2025 at 8:55 PM
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
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
August 20, 2025 at 8:16 PM
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
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
July 1, 2025 at 5:20 PM
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...
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
#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
June 9, 2025 at 1:50 PM
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
#glaciology #arctic #antarctica #cryosphere #fluiddynamics #cryosphere #climate
❄️ Ice is a critical mineral ❄️
May 31, 2025 at 2:45 PM
❄️ Ice is a critical mineral ❄️
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
May 29, 2025 at 4:07 AM
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