Scientists estimate that Indonesia will lose its two remaining glaciers by 2030. “The glaciers here could be considered the canary in the coal mine—especially for countries with a small amount of glacial ice to begin with,” says LDEO geologist Mike Kaplan. Via GlacierHub: https://bit.ly/42ABBXG

👏 Congratulations to Lamont-Doherty Earth Observatory climate scientist Marco Tedesco, co-author of a #TopViewedArticle in @wiley.com Journal of Geophysical Research: Atmospheres on behalf of @agu.org#TopViewedArticle ranked within the top 10% of most-viewed papers published in 2024! ➡️ https://bit.ly/4dJVwcN

In a tradition honoring #EarthDay, Lamonters hopped on their bikes to commute from both sides of the Hudson to the Lamont-Doherty Earth Observatory campus in Palisades, NY. What a scenic, green way to commute with friends and colleagues, highlighting alternatives to fossil fuel-powered vehicles!

Researchers Sean Cohen, Robert Pincus, and Lorenzo Polvani of Lamont-Doherty Earth Observatory have solved a long-standing atmospheric puzzle: how rising carbon dioxide cools the stratosphere even as it warms Earth’s surface and lower atmosphere. ➡️ https://bit.ly/4wqYqKQ

Breaking up is hard to do (for continents or anyone else), but a rift zone in Kenya may be closer to its breaking point than we thought. 🧪 eos.org/articles/eas...

New paper! 🎉 New high-resolution geopotential data maps basaltic flows between along the US eastern coastline. These basalt formations are the possible cause of the end Triassic mass extinction! Thanks @lamont.columbia.edu and @climate.columbia.edu www.frontiersin.org/articles/10....

⚒️ Article: Stratospheric cooling and amplification of radiative forcing with rising carbon dioxide @lamont.columbia.edu www.nature.com/articles/s41...

🚢 After a long Pacific transit, R/V Marcus G. Langseth arrived in Majuro in the Marshall Islands, one of the most geographically unique regions on Earth, and kicked off Expedition MGL 2605. Learn more: instagram.com/p/DYF_P56jiZq

Huge landslide in Alaska’s Tracy Arm fjord triggered a tsunami, creating a near-miss in a busy cruise area. Study led by @watershedlab.bsky.social with a team including LDEO seismologist Göran Ekström connects the event to glacier retreat + offers lessons on reducing dangers: https://bit.ly/4uvj4aS

🌍 Cradle of Humankind Is Tearing Apart 🌳 Tree Rings Show Hurricane Impacts/Sea-Level Stress 🌊 Sinking Land Drives Hidden Flood Risk in Java ☁️ Complicated Future for Atmosphere's "Detergent" 🗓️ 5/13 Heart of Climate Justice, 5/30 World Fish Migration Day 📩 lamont.columbia.edu/news/newsletter

🔥 Ask us your burning questions about climate, science, and sustainability in the comments or via https://bit.ly/4tmwhlD. 💡 Our @lamont.columbia.edu and @climate.columbia.edu experts will help us all make sense of a rapidly changing world—one question at a time! ➡️ https://bit.ly/4tdgjdj

🌟 Congratulations to LDEO climate scientist Maureen Raymo, awarded the prestigious Nemmers Prize in Earth Sciences for pioneering development of hypotheses that explain climate change across Earth’s history and her educational leadership in the Earth system sciences. ➡️ https://bit.ly/3Pa7t21

🚨New paper about the second largest tsunami ever recorded, just published in @science.org A short 🧪⚒️🌊 thread #EGU26 @ucalgary.bsky.social @ucalgaryscience.bsky.social doi.org/10.1126/scie...

"Fifteen Maps that Changed How We See the Ocean Floor" Based on his research for The Library of Lost Maps, James Cheshire of @ucl.ac.uk pulled together these seminal works of Marie Tharp and Bruce Heezen! cc @seabed2030.bsky.social 🌊 ⚒️ 🌎 🌍 🌏 libraryoflostmaps.com/2026/05/06/f...

👏 LDEO geologist Mike Kaplan studies the ways ice sheets, glaciers, climates, and landscapes changed in the past, and in recognition of this exceptional work, has been awarded the Kayden Guggenheim Fellowship in Climate Studies by @guggfellows.bsky.social! #GuggFellows2026 ➡️ https://bit.ly/4wqExUu

An assistant professor of Earth and environmental sciences and LDEO chemical oceanographer, Laramie Jensen studies metals in the ocean essential for the diet of phytoplankton, the algae that form the base of the ocean's food web. Learn more: https://bit.ly/48vxhwb

Among the extraordinary women recognized in 2026 by the National Women’s Hall of Fame is groundbreaking geologist and cartographer Marie Tharp of Lamont-Doherty Earth Observatory! Learn more: https://www.womenofthehall.org/hall-of-fame-induction/2026-inductees/

On Apr 29 6-8pm ET, join us for our special #EarthMonth Public Lecture—NASA's Billion $$$ Samples: Space Rocks, Open Science, and the Era of AI—with Lamont-Doherty Earth Observatory geochemist Kerstin Lehnert. 🌕 Learn More/RSVP: https://bit.ly/4mVTqJV

Happy #EarthMonth! This #ColumbiaBeautifulPlanet 📷 features sunrise over Hayli Gubbi volcano, Ethiopia (Amdemichael Zafu Tadesse, LDEO). Share yours! For more #EarthDay photos and resources: earthday.columbia.edu

On May 4 5:30pm ET, join us for a screening of The Plastic Detox + conversation with experts Beizhan Yan (@lamont.columbia.edu), Jasmine McDonald (Columbia School of Public Health), Alexandra Zissu (@momscleanairforce.org), @sandragoldmark.bsky.social (Climate School). RSVP: https://bit.ly/4cHpjkY

Now that NYC's congestion pricing program has been in place for over a year, our experts weigh in on its success: LDEO's @dwesty.bsky.social on air quality, Columbia SPS' Steven Cohen on public policy, @sabincenter.bsky.social's @michaelgerrard.bsky.social on legal challenges. https://bit.ly/4vJe6Jj

Study by LDEO researchers/colleagues finds that Earth’s underlying crust in Turkana Rift region has been significantly thinned, presaging Africa’s eventual breakup—and with that finding, new perspective on how Turkana’s world-famous fossil record of human evolution came to be: https://bit.ly/41QD4ZC

Excited to share our new paper published today in @natcomms.nature.com! We find that the crust beneath the Turkana Rift is extremely thin, and that the rift’s maturation played a key role in shaping the accumulation of Turkana’s world-famous hominin fossil record. www.nature.com/articles/s41...

Happy #EarthMonth! This #ColumbiaBeautifulPlanet 📷 features sunset over the Hudson River (Andrew Marshall Fagerheim, LDEO). Share yours! For more #EarthDay photos and resources: earthday.columbia.edu

New study by LDEO Tree Ring Lab scientists and colleagues finds that coastal forests in the Northeastern US contain a record of major hurricanes, trees are recovering from storms within two years, and coastal trees may already be showing signs of stress from sea-level rise: https://bit.ly/3OTvWbN

💡 K-12 educators, families, learners of all ages, looking for great #EarthMonth lessons? Check out our Climate LIVE K12 library (https://bit.ly/4dPS0hF), today featuring ❄️ Make ‘N Break Ice: https://bit.ly/3ODN1q6

Happy #EarthMonth! This #ColumbiaBeautifulPlanet 📷 features evidence of spring at LDEO Comer Building (Kelly Fenton-Samuels, LDEO). Share yours! For more #EarthDay photos and resources: earthday.columbia.edu

🧛 Are (energy) vampires haunting your house? Here, some of the biggest offenders that might be secretly costing you money and energy, and how to save on both. 🔌 Via State of the Planet: https://news.climate.columbia.edu/2026/04/13/the-energy-vampires-haunting-your-home/

What does climate action look like today? Our Earth Month reading list brings together 15 books on climate advocacy, science, conservation, and disaster preparedness. buff.ly/BaS0RDG #EarthMonth @columbiauniversity.bsky.social @climate.columbia.edu

News from #SSA2026: Last year's massive #Kamchatka #earthquake triggered swarms of tiny earthquakes in #NewJersey, #NewYork and #Pennsylvania, according to a @lamont.columbia.edu researcher buff.ly/HL4PvSJ ⚒️

🌟 Congratulations to LDEO geologist and Lamont Research Professor Michael Kaplan, awarded the Kayden Guggenheim Fellowship in Climate Studies by @guggfellows.bsky.social in recognition of career achievement and exceptional promise! #GuggFellows2026 ➡️ Learn more: https://bit.ly/4dOcZBr

Happy #EarthMonth! This #ColumbiaBeautifulPlanet 📷 features BLOOFINZ research cruise in Argo Abyssal Plain (Joaquim Goes, LDEO). Share yours! For more #EarthDay photos and resources: earthday.columbia.edu

💡 K-12 educators, families, learners of all ages, looking for great #EarthMonth lessons? Check out our Climate LIVE K12 library (https://bit.ly/4dPS0hF), today featuring 🪵 Put a Ring on It: https://bit.ly/4vtcWl7

💡 K-12 educators, families, learners of all ages, looking for great #EarthMonth lessons? Check out our Climate LIVE K12 library (https://bit.ly/4dPS0hF), today featuring 🐟 All About Fish: https://bit.ly/4sDU8Nh

Happy #EarthMonth! This #ColumbiaBeautifulPlanet 📷 features Rock, ice, and sky in Greenland, "an ancient place holding the secrets of our planet, our memories" (Marco Tedesco, LDEO). Share yours! For more #EarthDay photos and resources: earthday.columbia.edu

Since 1970, #EarthDay reminds us to celebrate and protect our planet. This year's theme—“Our Power, Our Planet”—underscores how we can all be climate advocates, and denotes the many powerful, and renewable, tools we can use to meet our shared sustainability goals. 🌎 https://bit.ly/4vlwrMk

🔥 Hot of the press at #GPLetters by Moussallam et al. "From mantle to eruption: unraveling the true oxidation state of arc magmas", read more here: buff.ly/x07QHo4 #OpenAcess @lamont.columbia.edu

This #EarthMonth, we're sharing photos from all over the world and from our campuses, too! Follow #ColumbiaBeautifulPlanet & share your own. 📷 Wildflowers on cliffs of Gaspé Peninsula, Canada (Miriam Cinquegrana, LDEO). More #EarthDay photos & resources: earthday.columbia.edu

This #EarthMonth, LDEO volcanologist Terry Plank shares the importance of studying volcanos like Chile’s Villarrica in our work to understand and protect our planet. 🌋 AVERT playlist: https://bit.ly/3OrDGSa 🌎 #EarthDay events, ideas, and resources: earthday.columbia.edu

This #EarthMonth, a quick but powerful reflection from LDEO volcanologist @einatlev.bsky.social#EarthMonthat Chile’s Villarrica Volcano on why it's so important to study and protect our planet. 🌋 AVERT playlist: https://bit.ly/3OrDGSa 🌎 #EarthDay events, ideas, and resources: earthday.columbia.edu

New study by LDEO researchers & colleagues finds that land subsidence is outpacing ocean-driven sea-level rise along the northern coastline of Java Island, Indonesia, underscoring the importance of tracking sinking land and rising sea in coastal regions: https://bit.ly/4suCADb

Protecting Our Planet: #EarthDay 2026 🌿 Hidden "Chemical Currency" in Carbon Cycle ❄️ Antarctica's 'Greenlandification' 🌍 Earth's "Missing" Billion Years Explained 🗓️ Apr 15 Pollution & Health 🗓️ Apr 29 NASA's Billion $$$ Samples 🌱 $10K Gift Match 📩 lamont.columbia.edu/news/newsletter

What was once just everyday lived experience for a young girl in India became a call-to-action for Climate School postdoc Pavithra Priyadarshini Selvakumar to understand the intersection of women & climate justice, and how AI must include women in the algorithm. Via Dream.org. https://bit.ly/4snI3vv

With @lamont.columbia.edu expert Beizhan Yan, co-director of MS in Sustainability Science, MS in Sustainability Management students Yoni Ronn and Siddhant Srivastava turned microplastics research into Moby Filter, a startup tackling laundry-related pollution at its source: https://bit.ly/41e58FN

💡Today I Learned (TIL): Jasmin Zheng, MA Climate & Society In Agroecology with Yushu Xia, a field trip to Stone Barns Center highlighted that agroecological farming is about managing an entire ecosystem and rethinking supply chains in ways that support ecological health and farmers’ livelihoods.

New model developed by LDEO, @eapsmit.bsky.social, @ncar-ucar.bsky.social researchers shows how levels of the “atmosphere’s detergent”—hydroxyl radicals, key molecules that help break down methane and remove pollutants—may rise and fall in response to climate change: https://bit.ly/4bNKK4z

3 Insights on the Future of Our Planet 🤔 1️⃣ Extreme weather is destabilizing global food. 🫒 2️⃣ A "chemical currency" in ocean is fueling global carbon cycle. 🧪 3️⃣ Tectonic shifts explain "missing" billion years of Earth's history. 🌍 📩 Subscribe: climate.columbia.edu/join

As part of the UNOLS Academic Research Fleet, LDEO’s R/V Marcus G. Langseth has supported seismic surveys since 2008, but this is the first 3D survey since 2016, and the first-ever 4D (time-lapse) survey! 🚢 Learn more: instagram.com/p/DWcOauXjLvK/

What does “seismic coverage” mean? Think of the R/V Marcus G. Langseth mapping the seafloor like mowing a lawn: one pass isn't enough. We run line after line in a controlled pattern to build consistent coverage across the area. 🚢 Learn more: instagram.com/p/DWaanaSDN_Q/

On Field Geology Barbados trip, students ventured into Cole's Cave. Barbados is formed from uplift of accretionary sediments with coral reef building on top of them. Caves form when groundwater reacts with carbonate fossil coral reef rocks, becomes acidic, and dissolves calcite.