Marie Kroeger
marie-kroeger.bsky.social
Marie Kroeger
@marie-kroeger.bsky.social
Scientist | Mother | Coffee lover
Chief Science Officer @ In-Pipe Technology
Guest Scientist @ Los Alamos National Laboratory
Research focuses on using #microbiome to fight human caused problems #climatechange #waste #cleanwater #soilhealth
Check out our latest article on how #microorganisms and their #metabolites control the development and persistence of #soil #water repellency. This work can impact how we manage #agricultural land to reduce topsoil #erosion

academic.oup.com/ismecommun/a...
Bacterial and fungal composition and exometabolites control the development and persistence of soil water repellency
Abstract. Soil water repellency (SWR), the reduced affinity of soil for water, is a phenomenon that affects soils globally. With worsening climate change,
academic.oup.com
June 12, 2025 at 3:59 PM
Reposted by Marie Kroeger
It turns out the food system is a key contributor to climate change.

But there are effective solutions -- especially shifting diets, reducing food waste, protecting forests, and improving fertilizer use.

Here's the science behind the solutions from my last TED talk:

go.ted.com/jonathanfoley24
The problem with food and climate — and how to fix it
Global food production — from meat to grains — accounts for a third of all greenhouse gas emissions, says sustainability scientist Jonathan Foley. He presents a portfolio of data-backed solutions to b...
go.ted.com
April 2, 2025 at 3:28 PM
Reposted by Marie Kroeger
I may be tired and a little hoarse, but as I said again and again on the Senate floor, this is a moment where we cannot afford to be silent, when we must speak up.
April 2, 2025 at 1:09 AM
Reposted by Marie Kroeger
This is what happens to you in the US for writing an op-ed now. RIP first amendment.
DHS detains grad student who advocated for Palestine and the "humanity of all people"
Rumeysa Ozturk, a student at Tufts University, drew the attention of a pro-Israel group for co-auhtoring an op-ed
www.salon.com
March 26, 2025 at 6:24 PM
Reposted by Marie Kroeger
There are only a few days left to apply to the 2025 NMDC Ambassador cohort! Visit microbiomedata.org/ambassadors/ to apply by Friday 🧪
February 24, 2025 at 9:54 PM
Reposted by Marie Kroeger
The Smithsonian Environmental Research Center is hiring a new PI! This position is open with respect to discipline, but must complement and extend SERC's ecological and environmental research: serc.si.edu. Position closes Jan 15th:
www.usajobs.gov/job/824892200. Please share widely!
December 20, 2024 at 4:08 PM
Reposted by Marie Kroeger
Excited to share our new study in @naturecomms.bsky.social showing that soil fungi, unlike bacteria, remain fully active under severe drought conditions, and also invest in synthesis of storage compounds.
Led by the amazing @loutsi.bsky.social and Alberto Canarini.
Thread 1/2

rdcu.be/d1Tyg
Soil fungi remain active and invest in storage compounds during drought independent of future climate conditions
Nature Communications - How climate change will impact microbial community growth is unclear. Here, the authors use a field experiment with varying global change factors, finding fungal growth more...
rdcu.be
November 29, 2024 at 6:39 PM
Reposted by Marie Kroeger
Got to join New Hampshire Public Radio, @npr.org to answer a listener question on the implications of raking the leaves that fall on to the ground during fall 🍃 🍁 🍂, a seasonally appropriate biogeochemistry question. www.nhpr.org/environment/...
Outside/Inbox: Should we leave the leaves?
When we rake and remove the leaves, does that disrupt the nutrient recycling that would normally occur?
www.nhpr.org
November 22, 2024 at 10:23 PM
Reposted by Marie Kroeger
Bluesky is emerging as the new platform for science.

Indeed almost all people who used to be active on climate change on Twitter/X are now here.

To get more content: @katharinehayhoe.com has the complete overview and best starter packs, as usual 😀

mikeyoungacademy.dk/bluesky-is-e...
Bluesky is emerging as the new platform for science - Mike Young Academy
Scientific Twitter is about to find its true successor. And it is not X. This, our latest release, shows that the Bluesky network of scientists is growing — and growing.
mikeyoungacademy.dk
November 20, 2024 at 7:31 AM
Just published a study in Sustainable Microbiology focused on the complexities of #nitrogen and #carbon availability on microbially driven #plantlitter #decompostion and how climate change may impact these nutrient pools

academic.oup.com/sumbio/advan...
Simulated nitrogen deposition and precipitation events alter microbial carbon cycling during early stages of litter decomposition
Abstract. Plant litter decomposition is a major nutrient input to terrestrial ecosystems that is primarily driven by microorganisms. Litter quality is cons
academic.oup.com
November 18, 2024 at 9:18 PM
Reposted by Marie Kroeger
"Climate policy under a second Trump presidency" | My interview earlier today (joined by NY TImes' Coral Davenport) on @npr.org / #WHYY's #Studio2 with Avi Wolfman-Arent: whyy.org/episodes/cli...
Climate policy under a second Trump presidency - WHYY
President-elect Trump has called climate change a hoax, led his supporters in chants of “drill baby drill” and said he’d pull out of the Paris climate agreement. What should we expect from the Trump a...
whyy.org
November 15, 2024 at 12:46 AM
Reposted by Marie Kroeger
It's finally here!

"Today, the White House Office of Science and Technology Policy (OSTP) is releasing a national strategy to advance research on the benefits, risks, and tradeoffs of marine carbon dioxide removal [mCDR], an innovative technology that could help address the climate crisis." 🌊
White House Office of Science and Technology Policy Releases National Marine Carbon Dioxide Removal Research Strategy | OSTP | The White House
Today, the White House Office of Science and Technology Policy (OSTP) is releasing a national strategy to advance research on the benefits, risks, and tradeoffs of marine carbon dioxide removal, an in...
www.whitehouse.gov
November 12, 2024 at 6:22 PM
Call to action‼️ please spread the word! We must take action now as a #microbiology community to implement climate change solutions and policies to save the planet. #climatechange

doi.org/10.1128/msys...
Microbial solutions must be deployed against climate catastrophe | mSystems
This paper is a call to action. By publishing concurrently across journals like an emergency bulletin, we are not merely making a plea for awareness about climate change. Instead, we are demanding immediate, tangible steps that harness the power of microbiology and the expertise of researchers and policymakers to safeguard the planet for future generations.
doi.org
November 11, 2024 at 7:03 PM
Exciting to see Chicago Botanic Garden exploring this important topic in a data-driven manner #plant #soil #RethinkingLawns news.wttw.com/2024/11/11/t...
Turf Grass Is America’s Default Lawn Setting. Chicago Researchers Are Rethinking the Possibilities
Researchers at the Chicago Botanic Garden and Chicago Park District have teamed up on a project to answer one of ecology’s burning questions: What could lawns be besides grass?
news.wttw.com
November 11, 2024 at 12:14 PM
Just made the jump and hoping to rebuild my network of amazing scientists and educators! 🔬🧫🧪
November 8, 2024 at 5:41 PM