Leigh Stearns
@leighstearns.bsky.social
Climate and glacier scientist at UPenn.
Reposted by Leigh Stearns
A new analysis of #CryoSat-2 data revealed that subglacial lake levels in Antarctica are changing not by centimeters but by *meters*.
New research from Sally Wilson @universityofleeds.bsky.social, comments from @leighstearns.bsky.social @upenn.edu. eos.org/articles/sat...
New research from Sally Wilson @universityofleeds.bsky.social, comments from @leighstearns.bsky.social @upenn.edu. eos.org/articles/sat...
Satellite Data Reveal Changing Lakes Under Antarctic Ice - Eos
Radar altimetry observations have pinpointed 85 active subglacial lakes, shedding light on how water moves beneath the Antarctic Ice Sheet.
eos.org
November 4, 2025 at 3:51 PM
A new analysis of #CryoSat-2 data revealed that subglacial lake levels in Antarctica are changing not by centimeters but by *meters*.
New research from Sally Wilson @universityofleeds.bsky.social, comments from @leighstearns.bsky.social @upenn.edu. eos.org/articles/sat...
New research from Sally Wilson @universityofleeds.bsky.social, comments from @leighstearns.bsky.social @upenn.edu. eos.org/articles/sat...
Reposted by Leigh Stearns
If you think mis- and disinformation is no big deal , read this: www.nature.com/articles/s41...
Relative engagement with sources of climate misinformation is growing across social media platforms - Scientific Reports
Scientific Reports - Relative engagement with sources of climate misinformation is growing across social media platforms
www.nature.com
October 24, 2025 at 7:41 AM
If you think mis- and disinformation is no big deal , read this: www.nature.com/articles/s41...
Reposted by Leigh Stearns
We have a new paper out! Work with @leighstearns.bsky.social, @laserglaciers.bsky.social, and Sid Shankar studying the potential of new ICEYE SAR satellite imagery to study the dynamic behaviour of ice mélange around the margins of the Greenland Ice Sheet.
Read more here: tinyurl.com/mtc94juu
Read more here: tinyurl.com/mtc94juu
October 14, 2025 at 7:25 PM
We have a new paper out! Work with @leighstearns.bsky.social, @laserglaciers.bsky.social, and Sid Shankar studying the potential of new ICEYE SAR satellite imagery to study the dynamic behaviour of ice mélange around the margins of the Greenland Ice Sheet.
Read more here: tinyurl.com/mtc94juu
Read more here: tinyurl.com/mtc94juu
New paper from our group using autonomous laser scanning data to observe calving at Helheim Glacier. Congrats to @laserglaciers.bsky.social on his awesome first pub!
🚨 New Publication 🚨
I’m excited to share our new paper out in @jgrearthsurface.bsky.social!
Read more about calving mechanisms at Helheim Glacier from two autonomous terrestrial laser scanners (ATLAS) results here doi.org/10.1029/2024...
I’m excited to share our new paper out in @jgrearthsurface.bsky.social!
Read more about calving mechanisms at Helheim Glacier from two autonomous terrestrial laser scanners (ATLAS) results here doi.org/10.1029/2024...
Calving Mechanisms Inferred From Observations of Surface Depressions at Helheim Glacier, Greenland
Surface depressions on Helheim Glacier appear at a consistent location on the lee side of a subglacial ridge and have increased in frequency
Observed calving episodes, regardless of calving style...
doi.org
October 2, 2025 at 12:38 AM
New paper from our group using autonomous laser scanning data to observe calving at Helheim Glacier. Congrats to @laserglaciers.bsky.social on his awesome first pub!
Reposted by Leigh Stearns
Grateful to have the opportunity to contribute to this document. Put science back in climate reports!
September 3, 2025 at 12:29 AM
Grateful to have the opportunity to contribute to this document. Put science back in climate reports!
Reposted by Leigh Stearns
Just because the Trump Administration wants to pretend climate change isn’t real, it doesn't make it any less urgent or concerning.
It’s time to listen to the overwhelming majority of scientists and act accordingly, now.
It’s time to listen to the overwhelming majority of scientists and act accordingly, now.
Scientists Denounce Trump Administration’s Climate Report
www.nytimes.com
September 2, 2025 at 9:38 PM
Just because the Trump Administration wants to pretend climate change isn’t real, it doesn't make it any less urgent or concerning.
It’s time to listen to the overwhelming majority of scientists and act accordingly, now.
It’s time to listen to the overwhelming majority of scientists and act accordingly, now.
Reposted by Leigh Stearns
🚨🚨🚨 FREE DATA ALERT! 🚨🚨🚨
If you're a federally funded researcher in the U.S., you can access GHGSat's high-resolution methane emissions data for free through NASA's Commercial Satellite Data Acquisition Program! 🌎
More info on how to apply here: bit.ly/3I4ldrs
If you're a federally funded researcher in the U.S., you can access GHGSat's high-resolution methane emissions data for free through NASA's Commercial Satellite Data Acquisition Program! 🌎
More info on how to apply here: bit.ly/3I4ldrs
July 3, 2025 at 1:28 PM
🚨🚨🚨 FREE DATA ALERT! 🚨🚨🚨
If you're a federally funded researcher in the U.S., you can access GHGSat's high-resolution methane emissions data for free through NASA's Commercial Satellite Data Acquisition Program! 🌎
More info on how to apply here: bit.ly/3I4ldrs
If you're a federally funded researcher in the U.S., you can access GHGSat's high-resolution methane emissions data for free through NASA's Commercial Satellite Data Acquisition Program! 🌎
More info on how to apply here: bit.ly/3I4ldrs
Reposted by Leigh Stearns
This is theft, plain and simple. They stole this from you. Every deletion, every erasure, every website that goes dark is a crime against the American public
The US Global Change Research Program's website, including all its sub-domains that host the National Climate Assessments and related reports, is now offline.
The 1990 Global Change Research Act (see below) mandates its research findings be available to all federal agencies & departments.
The 1990 Global Change Research Act (see below) mandates its research findings be available to all federal agencies & departments.
June 30, 2025 at 11:33 PM
This is theft, plain and simple. They stole this from you. Every deletion, every erasure, every website that goes dark is a crime against the American public
Reposted by Leigh Stearns
They blame pollution but cut the EPA and clean air and water regulations. They blame poor nutrition but cut SNAP and programs to bring local produce to schools. They blame increased screen time while destroying public infrastructure that connects people. All while they take millions off healthcare.
The White House blamed exposure to environmental toxins, poor nutrition and increased screen time for a decline in Americans’ life expectancy Thursday.
White House says food, toxins among reasons for poor U.S. health
Parts of the “MAHA report” contradict scientific consensus.
wapo.st
May 23, 2025 at 3:10 AM
They blame pollution but cut the EPA and clean air and water regulations. They blame poor nutrition but cut SNAP and programs to bring local produce to schools. They blame increased screen time while destroying public infrastructure that connects people. All while they take millions off healthcare.
Reposted by Leigh Stearns
New op-ed in @nature.com: The Trump administration's assault on freedoms and the rule of law is an existential threat to US science. We urge scientists to speak out in defense of freedoms, not just funding. With Andrea Liu @upenn.edu and Sidney Nagel of UChicago! www.nature.com/articles/d41...
US researchers must stand up to protect freedoms, not just funding
Curtailment of freedoms and disregard for the rule of law in the United States is destroying the ability of science to serve the nation’s, and the world’s, interests. Researchers can take action.
www.nature.com
May 13, 2025 at 10:41 AM
New op-ed in @nature.com: The Trump administration's assault on freedoms and the rule of law is an existential threat to US science. We urge scientists to speak out in defense of freedoms, not just funding. With Andrea Liu @upenn.edu and Sidney Nagel of UChicago! www.nature.com/articles/d41...
Reposted by Leigh Stearns
Reposted by Leigh Stearns
The USDA has halted funding for UMaine programs: www.pressherald.com/2025/03/11/u...
USDA halts funding for University of Maine programs
The temporary spending pause comes two weeks after President Donald Trump threatened to cut all of Maine's federal funding following an altercation with Gov. Janet Mills over allowing transgender athl...
www.pressherald.com
March 11, 2025 at 4:07 PM
The USDA has halted funding for UMaine programs: www.pressherald.com/2025/03/11/u...
Reposted by Leigh Stearns
In a remarkable show of unity, today 48 scientific societies representing almost 100,000 members call on Congress to protect the future of science. Our elected officials must act now so we have a hope of avoiding long-term damage to the US science enterprise. www.ucsusa.org/about/news/s...
48 Scientific Societies Representing Almost 100,000 Scientists Ask Congress to Protect the Future of Science
48 scientific societies representing almost 100,000 scientists signed on to a letter asking Congress to protect the future of science
www.ucsusa.org
March 3, 2025 at 8:54 PM
In a remarkable show of unity, today 48 scientific societies representing almost 100,000 members call on Congress to protect the future of science. Our elected officials must act now so we have a hope of avoiding long-term damage to the US science enterprise. www.ucsusa.org/about/news/s...
Reposted by Leigh Stearns
Great reporting from @wired.com about what DOGE is doing to Antarctica, affecting US science and national security. This is what we will lose.
We can't just leave our bases in Antarctica empty. South Pole! McMurdo! Palmer!
At some point we might need a GoFundMe.
We can't just leave our bases in Antarctica empty. South Pole! McMurdo! Palmer!
At some point we might need a GoFundMe.
DOGE’s Chaos Reaches Antarctica
Daily life at US-run Antarctic stations has already been disrupted. Scientists worry that the long-term impacts could upend not only important research but the continent’s delicate geopolitics.
www.wired.com
February 27, 2025 at 3:17 PM
Great reporting from @wired.com about what DOGE is doing to Antarctica, affecting US science and national security. This is what we will lose.
We can't just leave our bases in Antarctica empty. South Pole! McMurdo! Palmer!
At some point we might need a GoFundMe.
We can't just leave our bases in Antarctica empty. South Pole! McMurdo! Palmer!
At some point we might need a GoFundMe.
Reposted by Leigh Stearns
I have written a short statement responding to mass firings today of #NOAA / National Weather Service (#NWS) staff (which were concentrated among recent hires as well as highly experienced staff who had recently been promoted). Please see below screenshot & below for full text.
February 27, 2025 at 11:17 PM
Reposted by Leigh Stearns
If all their previous actions don't destroy scientific research in the U.S., this one, which seeks to modify or terminate grants and contracts, including those to educational institutions, will certainly do so.
It's so sad that those who have benefited from the system now seek to destroy it.
It's so sad that those who have benefited from the system now seek to destroy it.
Implementing the President's "Department of Government Efficiency" Cost Efficiency Initiative
By the authority vested in me as President by the Constitution and the laws of the United States of America, it is hereby ordered: Section 1.
www.whitehouse.gov
February 27, 2025 at 8:15 PM
If all their previous actions don't destroy scientific research in the U.S., this one, which seeks to modify or terminate grants and contracts, including those to educational institutions, will certainly do so.
It's so sad that those who have benefited from the system now seek to destroy it.
It's so sad that those who have benefited from the system now seek to destroy it.
Reposted by Leigh Stearns
Doug was a NSF program officer for a few of my projects before stepping into his role below. His loss is an example of the many negative impacts. I speak often on the value of collaboration and cost sharing to get the most bang for our buck. Losses like Doug’s work affect everyone in the U.S. 🧪
February 24, 2025 at 12:20 PM
Doug was a NSF program officer for a few of my projects before stepping into his role below. His loss is an example of the many negative impacts. I speak often on the value of collaboration and cost sharing to get the most bang for our buck. Losses like Doug’s work affect everyone in the U.S. 🧪
Reposted by Leigh Stearns
@leighstearns.bsky.social shining bright at #AGU24 telling the fascinating story of changes at Greenland’s Helheim Glacier Greenland since the 1940s. Advance and thickening up to the 1980s followed by retreat and thinning, all in response to warming atmosphere and ocean and adding to sea level rise
December 13, 2024 at 7:46 PM
@leighstearns.bsky.social shining bright at #AGU24 telling the fascinating story of changes at Greenland’s Helheim Glacier Greenland since the 1940s. Advance and thickening up to the 1980s followed by retreat and thinning, all in response to warming atmosphere and ocean and adding to sea level rise