Hot off the presses! Abrupt permafrost thaw is a critical climate feedback but is poorly defined & understood. In an awesome collaboration between my team & the Permafrost Carbon Network, PhD student Hailey Webb provides a formal definition to guide future studies. link.springer.com/article/10.1...

Congratulations to Dr. Ying and all co-authors, including @benpoulter.bsky.social @profdesai.bsky.social and @woodwellclimate.bsky.social @permafrostpathways.bsky.social's Jennifer Watts, Kyle Arndt, @annvirkk.bsky.social, Brendan Rogers, and Sue Natali. essd.copernicus.org/articles/17/...

If you need land cover datasets for the Arctic-boreal region, here is one great option for you at 1-km resolution: essd.copernicus.org/preprints/es.... It merges several regional products and separates dozens of key land cover types (e.g. bogs, fens, pine forest, spruce forest). 🌎🏞🏔

Make a difference this summer -- Join @cmshintani.bsky.social and me for an internship at @woodwellclimate.bsky.social and contribute to critical research on climate change.
Apply now: bit.ly/4l5D93W

First circumpolar maps of aboveground tundra biomass at 30 m resolution 💪 www.sciencedirect.com/science/arti...

These new estimates show that in total tundra plants (above-and belowground) store around 8 Pg C while the upper 30 cm soils store ca 53 Pg C.

" The sooner we reduce global greenhouse gas emissions, the sooner we can get the permafrost to refreeze," said Sue Natali.

Thanks @vivianla.bsky.social for covering this study!

Vuoden 2024 ilmastovuosikatsaus on julkaistu!

www.ilmastokatsaus.fi/2025/01/30/i...

Katsauksesta löydät muun muassa:
- Säätapahtumat Suomessa ja maailmalla vuonna 2024
- Keskilämpötilan kehitys pitkällä aikavälillä Suomessa
- Myrskypäivät Suomen merialueilla
- Itämeren merilämpöaallot

We are so grateful for everyone's engagement and great questions on this study! We want to address a few of the main ones that have appeared 🧵

We are looking for a grant-funded doctoral resarcher on a project focusing on how tree and shrub expansion into the tundra impact biodiversity and carbon balance @Department of Geosciences and Geography @helsinkiuni.bsky.social! DM me if you are interested, and please share!

A story summrizing the key results put together by @k8petersen.bsky.social here: permafrost.woodwellclimate.org/after-millen...

Last week's highlight was our study in @natclimchange.bsky.social showing over 30% of the Arctic-boreal region as a CO2 source: www.nature.com/articles/s41...

First PhD paper (preprint) from a collaborator Nathalie Triches on some methodological tips related to Arctic N2O flux measurements: amt.copernicus.org/preprints/am... 🧐🏔🛢

📢New paper🚨Excited to share our new review paper in @plosclimate.org on Browning events in Arctic ecosystems! 🌿❄️ A wonderful collaboration, brilliantly led by @garethphoenix.bsky.social. 🌿@naturvetenskap.bsky.social @vetenskapsradet.bsky.social

That's terrible!

Filling the Gaps: Context and Design of Arctic Carbon Flux Measurement Networks eos.org/editor-highl... -- an Editor's Highlight in @jgrbiogeo.bsky.social

🧊🔥 New paper @natclimchange.bsky.social: After millennia as a carbon deep-freezer for the planet, a third of the Arctic-boreal zone is now a CO2 source to the atmosphere. The int’l research team was led by @annvirkk.bsky.social
⬇️ Learn more:
permafrost.woodwellclimate.org/after-millen...

New paper in @agu.org Geophysical Research Letters: Detecting #Arctic hotspots using satellite and temp records shows extreme warming, drying and browning in Siberian forests and other areas of high ecosystem #climate stress in northern #Alaska & Northwest Territories of #Canada. #AGUPubs #GIS
a 🧵:

📣 Open PhD position in new #ERCStG project COLDSPOT. Are you interested in exploring processes regulating CH4 and N2O sinks in #permafrost soils? Excited to join Arctic field campaigns? Applying biogeochemical and microbial techniques? Come work with us! tinyurl.com/mu8fhscm
@cenunihh.bsky.social