Reposted by Aaron PutnamZack Labe @zacklabe.com · 25/09/2026All latitude bands outside of the Antarctic saw above average temperatures over the last 3 months. The tropical warming is notable, which is partly associated with El Niño. [Plot shows zonal-mean surface air temperature anomalies, where latitude = y-axis (not scaled by distance). Data: GISTEMPv4] 19031
Reposted by Aaron PutnamJoe Mason @moreorloess.bsky.social · 24/09/2026Beach ridge complex and dunes at Pointe aux Chenes, Michigan. I've got it in my slides for a case study on post-glacial rebound and other causes of lake level change on the Great Lakes, and I had to post it here again. 817524
Reposted by Aaron PutnamBrandon Bishop @brandontbishop.bsky.social · 24/09/2026I still want a pet dicynodont. 261
Aaron Putnam @aaronputnam.bsky.social · 24/09/2026Congratulations @melissaberke.bsky.social on being awarded the @agu “Asahiko Taira International Scientific Ocean Drilling Research Prize”!! 181
Reposted by Aaron PutnamAGU (American Geophysical Union) @agu.org · 23/09/2026🏆 AGU is excited to announce the recipients of the 2026 Union Medals, Awards and Prizes; Fellows; and Section Awards and Lectures. Please join us in congratulating these accomplished individuals. spklr.io/63325ETfjN 0207
Aaron Putnam @aaronputnam.bsky.social · 19/09/2026I visited dear friends and colleagues at @lamont.columbia.edu for the first time since my mentor Wally Broecker passed away and we celebrated his life in 2019… 1/2 150
Aaron Putnam @aaronputnam.bsky.social · 18/09/2026About to fly from Newark to Bangor, and we were informed that there will be no beverage service and that the seatbelt light will be on the entire flight. Now I can see why… 060
Reposted by Aaron PutnamDavid Ho @davidho.bsky.social · 15/09/2026The US National Science Foundation Directorate for Geosciences, which has funded most of my research over the past three decades, has been enshitified by Trump and his lackeys. 6565113
Reposted by Aaron PutnamAndrew Dessler @andrewdessler.com · 14/09/2026On The Climate Brink: The Atmosphere Just Set a Water Vapor Record. Aug. 2026 probably had more water vapor in the atmosphere than any month in the last few thousand years, if not a 100,000 years. www.theclimatebrink.com/p/the-atmosp...theclimatebrink.comThe Atmosphere Just Set a Water Vapor RecordMore water vapor means more rocket fuel for extreme rain — so this record is not good news 11282163
Reposted by Aaron PutnamProf Ian Hall @ianhall.bsky.social · 13/09/2026🌊 The Southern Ocean is one of Earth’s biggest CO2 sinks, but that could change dramatically as we move toward net-zero and negative emissions. As atmospheric CO2 falls, the Southern Ocean may actually begin releasing CO2 back into the atmosphere. 1/3 www.science.org/doi/10.1126/...science.orgEnhanced carbon loss in the Southern Ocean under mitigation scenariosThe Southern Ocean (SO) plays a pivotal role in the global carbon cycle by absorbing anthropogenic carbon dioxide (CO2). Yet, it remains uncertain whether this role will persist under future mitigatio... 23713
Aaron Putnam @aaronputnam.bsky.social · 13/09/2026My daughter and I witnessed Molly Tuttle last night. Amazing. 1151
Aaron Putnam @aaronputnam.bsky.social · 13/09/2026My daughter and I met these fellow Earthlings in the pollinator garden this afternoon. 1237
Aaron Putnam @aaronputnam.bsky.social · 13/09/2026Canadian brassica J.J. Kale Yellowchard New Kids on the Bok Choy 020
Aaron Putnam @aaronputnam.bsky.social · 09/09/2026Just returned from a few days of glacial geology fieldwork on Katahdin. The early autumn weather is magical. Little-to-no cell signal to distract. And I made a friend (well, acquaintance) in North Basin while bushwhacking toward some glacially deposited boulders. ⚒️🧪 1313
Reposted by Aaron PutnamBrandon Bishop @brandontbishop.bsky.social · 06/09/2026#Quartz. Quartz remembers the sunlight for centuries, for millennia, for a hundred thousand years. Quartz remembers the warm of the sun as it tumbled down rivers, blew across deserts. Quartz remembers as it lies buried in the dark beneath dunes, beneath forgotten riverbeds. #MinCup26 25017
Reposted by Aaron PutnamBrent Ward @geobrentatlarge.bsky.social · 05/09/2026Great find and detective work to discover A. Cheeta Bones! and B. that contrary to assumptions, lived primarily on fish! Drawing shows the strange looking saga antelope. Its presence in Bering indicates a very cold (see convolute nose to warm the air) and little snow. www.cbc.ca/news/canada/...cbc.caBones found in Yukon ID'd as ice-age cheetah | CBC NewsResearchers used DNA and isotope analysis to figure out how the large cats survived in the far north. 1103
Aaron Putnam @aaronputnam.bsky.social · 05/09/2026While weeding the bog garden I discovered these cute volunteer Venus Flytrap seedlings! Sense of scale is hard in these photos, but I would estimate that they are a few centimeters across. 1110
Reposted by Aaron PutnamProf Ian Hall @ianhall.bsky.social · 04/09/2026A 1,000-year atmospheric methane record has been recovered from tropical ice in Peru. Why it matters: Most long-term CH₄ records come from polar ice. This first tropical record will help reveal how CH₄ sources have changed...and separate natural from human emissions. www.nature.com/articles/d41...nature.comPeruvian ice has preserved a global methane recordAn ice core from a tropical mountain shows that the equatorial input to methane levels was greater than previously thought. 34915
Reposted by Aaron PutnamJoe Mason @moreorloess.bsky.social · 02/09/2026Two amazing loess sections in Nebraska. Left, Middle to Late Pleistocene loess in a canal cut near Elba. Note gullies formed in the Late Pleistocene, then buried by loess. Right, Moran Canyon cut exposing the Brady Soil, formed at the Pleistocene-Holocene transition, halfway up by the cedar. 54510
Aaron Putnam @aaronputnam.bsky.social · 02/09/2026It’s been a while, so I thought I should provide an update on reading #LOTR to my 8-yr old daughter. We stalled for about one year on the early chapters of the Two Towers. But now she has met Treebeard and she is hooked. She is also not convinced that Gandalf is dead. 040
Reposted by Aaron PutnamLeah McElrath @leahmcelrath.bsky.social · 01/09/2026Rest in peace, Wendell Berry. 121376415
Reposted by Aaron PutnamLee Zimmerman @zim2918.bsky.social · 28/08/2026Canadian Strait of Hormuz Every ocean going ship from the great lakes must pass through the Welland Canal 2103023836
Reposted by Aaron PutnamZack Labe @zacklabe.com · 28/08/2026How are our glaciers around the world doing? 😢 Graphic from zacklabe.com/climate-chan... 619289
Aaron Putnam @aaronputnam.bsky.social · 25/08/2026💔 Dolly Parton, Superstar Whose Songs Spoke to Millions, Dies at 80 www.nytimes.com/2026/08/25/a...nytimes.comDolly Parton, Country Music Superstar Whose Songs Spoke to Millions, Dies at 80Known for her outsize persona, appearance and talent, she rose from rural poverty to become a top-selling singer, songwriter and entrepreneur. 050
Aaron Putnam @aaronputnam.bsky.social · 23/08/2026My 8-yr old and I walked among the glacially sculpted granite hills of Acadia today, Wabanaki ancestral homelands. Although I have seen them many times, these relict erratic boulders deposited during the termination of the last ice age still haunt me. (We also met a baby garter snake) 190
Aaron Putnam @aaronputnam.bsky.social · 23/08/2026The incredible @paleobluedot.bsky.social presented me with this mug for our wedding anniversary this past week! (I am a huge fan of Sara Willis) 190
Reposted by Aaron PutnamClimateBook @climatebook.bsky.social · 20/08/2026In commenting on this paper on the Earth's energy imbalance agupubs.onlinelibrary.wiley.com/doi/10.1029/... I referred to the issue of TCR (Transient Climate Response) vs ECS (Equilibrium Climate Sensitivity) and I want to expand on that a bit, since it intersects with some issuesagupubs.onlinelibrary.wiley.comRecent Temperature and Energy Imbalance Trends Point to Higher Estimates of Future WarmingRecent surface warming and top-of-atmosphere energy imbalance point to higher future warming than previously estimated Previous constraints on transient climate response using observed surface te... 12210
Reposted by Aaron PutnamClimateBook @climatebook.bsky.social · 20/08/2026This new paper is one of the better examples of teasing out the consequences of Earth's recent energy imbalance. scholar.google.com/citations?us... There has been a lot of confusion out there about what the energy imbalance means for climate, since most directly the energy imbalance isscholar.google.com 3112
Aaron Putnam @aaronputnam.bsky.social · 19/08/2026Spotted this chonky ‘pillar chewing on some milkweed at the Coastal Maine Botanical Gardens today. 050
Reposted by Aaron PutnamKatharine Hayhoe @katharinehayhoe.com · 17/08/2026I never expected one class to redirect my life. But that’s the thing about curiosity: you never know where one question will lead! That’s why I’m joining MIT for #CuriosityOnAMission Visit bit.ly/4gB3Gpj for more. #CuriosityPartner #sponsored 113623
Reposted by Aaron Putnam814bleedingrose.bsky.social @814bleedingrose.bsky.social · 17/08/2026 843593411
Reposted by Aaron PutnamAdmirable Women @admirablewomen.bsky.social · 17/08/2026Computer scientist Margaret Hamilton coined the term “software engineer.” She directed the Software Engineering Division at MIT’s Instrumentation Lab & led development of the on-board flight software for NASA’s Apollo Guidance Computer. She was born #OTD in 1936 & turns 90 today! #WomenInSTEM 145101562360
Aaron Putnam @aaronputnam.bsky.social · 17/08/2026If it takes a band of cross-dressing Aussies playing analog to bring down the manosphere, I’m here for it. Long live #KGLW. 0101
Reposted by Aaron PutnamClimateBook @climatebook.bsky.social · 14/08/2026MIT is hiring in planetary science! There is a deep pool of talent out there, especially in exoplanets, so I'm hoping for a flood of applicants to this (these) Earth Atmospheric and Planetary Science positions. eaps.mit.edu/about/employ... I am hoping we can get two hires out of this.eaps.mit.eduEmployment OpportunitiesEAPS is an academic community of approximately 40 faculty, 100 research staff including postdocs, and 175 students who study integrated aspects of Earth and planetary sciences, including through partn... 12110
Reposted by Aaron PutnamRick Thoman @alaskawx.bsky.social · 14/08/2026Utqiaġvik, Alaska up to 68F (20.0C) at 4pm AKDT Thursday. This is a new record high temperature for August 13, breaking the previous record of 66F (18.9C) set in 1991. Climate obs at Alaska’s northernmost community since 1920. #akwx #Arctic #Climate @climatologist49.bsky.social 04311
Reposted by Aaron PutnamClimate.us @climate.us · 13/08/2026It's ENSO-forecast day at NOAA — the perfect day for an ENSO announcement of our own. Starting next week, we're taking baby steps toward rebooting the ENSO Blog, which ran on Climate(.)gov from 2014–2025. 🌎️🧪 [1/4] 520470
Reposted by Aaron PutnamCeleste Labedz @celestelabedz.bsky.social · 13/08/2026I feel like xkcd has been getting more into geoscience the last couple of years, and I absolutely love it. Bonus text reads "the administration thinks it's weird, but the geologists say it looks normal." xkcd.com/3284/ 1238185
Reposted by Aaron PutnamAGU (American Geophysical Union) @agu.org · 12/08/2026From ancient greenhouse worlds to ice ages, Earth’s past offers vital clues to its future. 🌎 In #AGUEos, learn about the 40th anniversary special collection from Paleoceanography and Paleoclimatology. spklr.io/63326ER3Jw #AGUPubs #Oceans #Climate #Publishing #Paleoclimate #Paleooceanography 0104
Reposted by Aaron PutnamFaine Greenwood @faineg.com · 11/08/2026instead of staring into the abyss for yet another endless night, you could think about if Haast’s Eagle had male pattern baldness or not insteadnewscientist.comHaast’s eagle: Extinct New Zealand bird was part-eagle part-vulture | New ScientistThe Haast’s eagle had a beak and talons suited for capturing live prey, but its skull was adapted for ripping out organs 2435
Reposted by Aaron Putnamoptimisticsoap.bsky.social @optimisticsoap.bsky.social · 09/08/2026Libraries make us a harder target for authoritarianism. Equal access to info, ideas, and space that doesn’t require a purchase to belong. Also: using the library means money stays in your community instead of streaming out to Amazon. 📚 What’s checked out on your card right now? 32497973126
Reposted by Aaron PutnamBrandon Bishop @brandontbishop.bsky.social · 09/08/2026It would be very, very good if we got our act together on climate ASAP. Some people are linking this to fertilizer issues, that's not quite right--growth season for wheat is the spring and it was already evident months ago that drought was going to make this a bad year.farmpolicynews.illinois.eduUS Winter Wheat Crop Smallest Since 1965, USDA Says - Farm Policy NewsThe U.S. Department of Agriculture on Thursday cut its U.S. winter wheat crop outlook by 2% from a month earlier as a harsh drought in the Plains cut its hard red winter wheat production view to the... 22616
Reposted by Aaron PutnamJosh Kantor @jtkantor.bsky.social · 08/08/2026The Red Sox have just won 32 of 37 for the first time in the team's 126-year history. I'm commemorating the occasion by playing Peabo Bryson & Roberta Flack's "Tonight, I Celebrate My Love For You." 4688
Reposted by Aaron PutnamAGU (American Geophysical Union) @agu.org · 06/08/2026AGU is documenting the real-world impacts of recent U.S. Administration actions that have resulted in cuts, delays, and disruptions at NSF and other science agencies. Take the AGU Survey today. Responses before 31 August are most immediately helpful. 🔗 spklr.io/63325EuFnR 0169
Reposted by Aaron PutnamAGU (American Geophysical Union) @agu.org · 06/08/2026🚨 If you're a student, a first-time presenter at #AGU26, or someone presenting from a low and lower-middle income country, apply for the NEW Outstanding Emerging Presenters #OEP Program by 12 August after submitting your abstract. Apply today! 📲spklr.io/63323EuLdJ 031