Yarrow Axford
@yarrowaxford.bsky.social
Climate scientist, passionate about the Arctic and Earth’s history. Explorer/mom. Was William Deering Prof at Northwestern, on to adventures in Boston and writing.
I saw press coverage of this today, and didn't have time to click links - didn't realize it was you guys! Congrats to Andy and team on the nice work. 👏
October 3, 2025 at 1:00 AM
I saw press coverage of this today, and didn't have time to click links - didn't realize it was you guys! Congrats to Andy and team on the nice work. 👏
This research (and training of the next generation of scientists) was funded by the US National Science Foundation. Americans can stand up for science by asking their Senators and Representatives in DC to support NSF and American science. It's urgent to call this week, especially. Thank you!
October 1, 2025 at 3:41 AM
This research (and training of the next generation of scientists) was funded by the US National Science Foundation. Americans can stand up for science by asking their Senators and Representatives in DC to support NSF and American science. It's urgent to call this week, especially. Thank you!
I should clarify that cyanobacteria are cool, common in Arctic lakes, and not necessarily yikes. What's yikes to me is the speed and intensity of changes driven by just a few degrees C warming ~6600-3500 years ago. Alongside (from other studies) major glacier loss & species migrations. Big impacts.
October 1, 2025 at 3:29 AM
I should clarify that cyanobacteria are cool, common in Arctic lakes, and not necessarily yikes. What's yikes to me is the speed and intensity of changes driven by just a few degrees C warming ~6600-3500 years ago. Alongside (from other studies) major glacier loss & species migrations. Big impacts.
Mia is a highly talented PhD student approaching graduation at a tough time for U.S. science. I have to highlight another neat thing she's been up to: Art/science/community collaborations in the very special south Greenland town of Narsaq: www.miattuccillo.com/community-ou...
Community Outreach: Greenland — Mia T Tuccillo
www.miattuccillo.com
October 1, 2025 at 3:18 AM
Mia is a highly talented PhD student approaching graduation at a tough time for U.S. science. I have to highlight another neat thing she's been up to: Art/science/community collaborations in the very special south Greenland town of Narsaq: www.miattuccillo.com/community-ou...
Note that @isotopes.bsky.social (with other methods) found that lakes lost hypolimnetic oxygen in three more (far-away) sectors of Greenland around the same time. Oxygen depletion was apparently widespread, in response to a few degrees of summer warming. www.science.org/doi/10.1126/...
Aquatic plant wax hydrogen and carbon isotopes in Greenland lakes record shifts in methane cycling during past Holocene warming
δ2H values of aquatic plant wax reveal past Holocene warming led to expanded CH4 cycling in lakes across Greenland.
www.science.org
October 1, 2025 at 3:13 AM
Note that @isotopes.bsky.social (with other methods) found that lakes lost hypolimnetic oxygen in three more (far-away) sectors of Greenland around the same time. Oxygen depletion was apparently widespread, in response to a few degrees of summer warming. www.science.org/doi/10.1126/...
Mia painstakingly extracted photosynthetic pigments from 7,000-year-old sediments to figure this out. Super cool! (3/3) Gift link here: authors.elsevier.com/c/1lrE5-4PSD...
authors.elsevier.com
October 1, 2025 at 3:09 AM
Mia painstakingly extracted photosynthetic pigments from 7,000-year-old sediments to figure this out. Super cool! (3/3) Gift link here: authors.elsevier.com/c/1lrE5-4PSD...
Links between warming and lake-water quality are especially important in Greenland, where communities use rivers and lakes for drinking water. Congrats Mia, and thanks to Greenlanders for access to our research sites! 🙏 (2/3)
authors.elsevier.com
October 1, 2025 at 3:09 AM
Links between warming and lake-water quality are especially important in Greenland, where communities use rivers and lakes for drinking water. Congrats Mia, and thanks to Greenlanders for access to our research sites! 🙏 (2/3)
Thank you!! I hadn’t and will check it out.
March 17, 2025 at 2:49 AM
Thank you!! I hadn’t and will check it out.
I want to take every opportunity I can get to talk about how science is being kneecapped. Especially how this stuff is hurting our students, early career scientists, and civil servants!
March 17, 2025 at 12:02 AM
I want to take every opportunity I can get to talk about how science is being kneecapped. Especially how this stuff is hurting our students, early career scientists, and civil servants!
**An update and a piece of good news from Maine! Public outcry mattered. Keep making your voices loud.
www.seafoodsource.com/news/supply-...
www.seafoodsource.com/news/supply-...
Maine Sea Grant regains funding after industry, congressional pushback
The Maine Sea Grant program regained funding just days after the Trump administration cut funding without warning
www.seafoodsource.com
March 6, 2025 at 7:14 PM
**An update and a piece of good news from Maine! Public outcry mattered. Keep making your voices loud.
www.seafoodsource.com/news/supply-...
www.seafoodsource.com/news/supply-...
DOGE is demolishing American science, almost overnight. Maine’s bipartisan team of DC Senators and Representatives have power; and Mainers can tell them to stand up for science, stop the firings of federal scientists, and continue funding research. -END
March 6, 2025 at 7:14 PM
DOGE is demolishing American science, almost overnight. Maine’s bipartisan team of DC Senators and Representatives have power; and Mainers can tell them to stand up for science, stop the firings of federal scientists, and continue funding research. -END
training Maine’s next generation. It means better weather forecasts for fishermen and cures for sick loved ones. But only as long as scientists keep working.
March 6, 2025 at 7:14 PM
training Maine’s next generation. It means better weather forecasts for fishermen and cures for sick loved ones. But only as long as scientists keep working.
On its own the National Institutes of Health, which funds medical research, granted $125 million in 2024 to projects across Maine. Federal science funding like that is tough to get, but it supports good jobs for Mainers, supports a wide range of Maine industries, and supports
March 6, 2025 at 7:14 PM
On its own the National Institutes of Health, which funds medical research, granted $125 million in 2024 to projects across Maine. Federal science funding like that is tough to get, but it supports good jobs for Mainers, supports a wide range of Maine industries, and supports