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Dr. Emily Fairfax

@emilyfairfax.bsky.social
3.6K followers 154 following 70 posts

Associate Professor of Geography at the University of Minnesota and the St. Anthony Falls Lab. Ecohydrologist, beaver dam enthusiast, and advocate for inclusive curriculum. Ask me about beavers! she/her

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Reposted by Dr. Emily Fairfax
Shi En Kim @goesbykim.bsky.social · 21/07/2026
With so many wildfires raging on—Southwest, Canada—I wrote a post about how beavers can help prevent wildfires. Click if you want a dose of critter cuteness, too! @azcentral.com @emilyfairfax.bsky.social
azcentral.com
How Arizona's beavers could be a secret weapon in fire prevention
Scientists say beavers keep wetlands wet, leaving them less less prone to burn.
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 02/07/2026
How lucky are we that there is another species out there helping protect plants, animals, and ecosystems during catastrophic wildfires? Thanks, beavers.
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 05/05/2026
It's official, I got tenure! Big shout out to nature's engineers for keeping me inspired, curious, and excited about research even during the tougher times along the way. Does helping me get tenure count as an ecosystem service...? What's next? MORE BEAVER RESEARCH! (no one is surprised)
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Ryan J Hollister @phaneritic.bsky.social · 27/04/2026
An old friend says hello to @emilyfairfax.bsky.social today. Beaver dams still going strong and lots of fish!
A small creek runs through willlow lined meadow with burned pine tree snag on left and overcast sky above.
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umncla.bsky.social @umncla.bsky.social · 11/04/2026
Congratulations to CLA's Scholars of the College, Cindy García (Theatre Arts & Dance) and Emily Fairfax (Geography, Environment & Society)! 🔗 ow.ly/8prL50YFc9b
Middle-aged woman with gray hair wearing a green patterned blouse and a black necklace standing outdoors near modern buildings.Woman with shoulder-length blonde hair wearing a dark green button-up shirt standing outdoors with a blurred cityscape in the background.
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Dr. Sarah Fortner @erthsarah.bsky.social · 12/04/2026
Loved seeing beaverfest signs around town. Thanks @emilyfairfax.bsky.social! This event has special student driven momentum. sites.google.com/carleton.edu...
sites.google.com
Northfield Beaver Fest
What is a beaver festival?
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BUNDwasser @bundwasser.bsky.social · 07/04/2026
Heute ist #InterntionalBeaverDay und #Biber Expertin @emilyfairfax.bsky.social weiß: "Biber wären das schlechteste Klassenhaustier überhaupt! Wenn man aus der Pause zurückkäme, wären alle Schreibtische zerkaut und zu einem Damm zusammengeschoben." www.scientificamerican.com/article/what... 1/2
scientificamerican.com
We talked Hoppers science with a real-life beaver expert
How do scientists actually study beavers? How do beavers build dams? And what is “beaver butt juice”?
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Annual Reviews @annualreviews.bsky.social · 07/04/2026
🦫 Happy #NationalBeaverDay! Beavers aren’t just busy, they’re also saving the planet. @emilyfairfax.bsky.social and Cherie Westbrook discuss how beaver ecosystem engineering is an ally against climate change. Fun fact: Emily was a beaver sci consultant for Disney-Pixar’s Hoppers! 🎬 bit.ly/4mjZJqE
bit.ly
The Ecology and Evolution of Beavers: Ecosystem Engineers That Ameliorate Climate Change
Beavers, Castor canadensis in North America and Castor fiber in Eurasia, are widely referred to as nature's engineers due to their ability to rapidly transform diverse landscapes into dynamic wet...
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McKenna Sweet @mckennasweet.bsky.social · 24/03/2026
I could probably talk about wetlands and beavers for hours, so I naturally had such a fun time talking to @emilyfairfax.bsky.social and @jesseandrews.bsky.social about Pixar’s newest film, Hoppers. Big thanks and kudos to both of them! www.sierraclub.org/sierra/how-p...
sierraclub.org
How Pixar Got the Science Right in Hoppers
Meet the researcher who informed the writers about beaver behavior and threats to their habitat
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Sammy Roth @sammyroth.bsky.social · 13/03/2026
I was pretty pissed when I read that Pixar had toned down the "environmental message" in "Hoppers." Folks...I went to see it and it has an amazing environmental message! Not sure what got cut, but this is a climate parable for our time. Wrote about why: www.climatecoloredgoggles.com/p/pixar-hopp...
climatecoloredgoggles.com
Everyone go see 'Hoppers' ASAP
In Pixar's new film, humans and animals fight to block a freeway overpass that would destroy a wetland habitat. It's a brilliant climate parable.
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 09/03/2026
I’m not crying…you’re crying. This dedication at the end of the Hoppers credits has made just about every beaver person, ecologist, environmental scientist, and nature lover I know tear up a bit (or for many of us, full on lose it in tears again). Pond Rule #3: we’re all in this together.
Text in the Hoppers credits that reads “dedicated to beavers, monarch butterflies, all living things, and the humans who love and protect them”
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Karen Yip @kbyip.bsky.social · 07/03/2026
@emilyfairfax.bsky.social my family and I enjoyed the movie immensely this evening. Laughed & laughed, gasped, maybe tears. Watched your name scroll in the credits and the dedication to beavers, monarchs and all living things near the end. 👍👍👍👍 🦫🪵🦫🪵🥥🏥🥔🥔❤️❤️ iykyk
Movie theater cardboard cutout display for Hoppers movie. Cartoon character Goose, frog, butterfly, beaver, pink fish in a glass fishbowl, triplet snakes and a large bear with cute beaver in its mouth. Two smiling kids flanking either side of the Hoppers movie banner
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Jennifer Fearing @jenniferfearing.bsky.social · 07/03/2026
Had to see Hoppers on opening night! Spoiler alert: Freeway expansion didn’t stand a chance with beavers on the case. Nice work @emilyfairfax.bsky.social @bengoldfarb.bsky.social!
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 28/02/2026
After about 5 years (!) of keeping secrets, I am so excited that Disney Pixar's Hoppers is finally coming out on March 6th! Back in 2021, Pixar emailed me asking if I could give a talk about my research to their employees. Then another talk. And another. 📸 Disney/Jesse Grant/Getty Images
A composite image of me from the red carpet at the Hoppers premiere with the Hoppers logo and several hoppers characters.
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Colton the fish squeezer🐟🪴📚🏕️🐝 @fishsqueezer.bsky.social · 05/02/2026
"A beaver's salary...is sticks." @emilyfairfax.bsky.social incredible mic drop moment toward the end of your presentation at River Restoration Northwest. Great message and great delivery, thank you! #hydrology 🦫🦊
A large beaver dam that includes some huge logs. The edge of the forest is quite distant because reasons.
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Sara Koopman @spaceforpeace.bsky.social · 26/01/2026
Geographers, in case you missed this detail, Alex Pretti graduated from the Minnesota Geography department in 2011.
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Lora Kolodny @lorak.bsky.social · 24/01/2026
“Multiple sources with knowledge of the situation say federal agents shot a man multiple times in south Minneapolis this morning…” www.startribune.com/ice-raids-mi... (there is a video at their live blog and rolling updates…)
startribune.com
Live: Man shot by federal agent in south Minneapolis this morning, witnesses say
A video appears to shows federal agents wrestling a man to the ground then shooting him.
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 20/11/2025
Beavers? Robotics? A Messy Chalkboard? A Bunch of Animals? Chaos? All my favorite things! In one movie! Check out the new trailer for Pixar's Hoppers, coming out this spring! youtu.be/PypDSyIRRSs?...
youtu.be
Hoppers | Official Trailer
YouTube video by Pixar
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Stanford Woods Institute for the Environment @woods.stanford.edu · 18/11/2025
Beavers can boost water storage, wildlife habitat, and carbon capture. A new mapping tool helps identify sites where beaver reintroduction programs could deliver ecological benefits. Learn more: stanford.io/4prrRsf #biodiversity #naturalclimatesolutions
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jamesmacarthur.bsky.social @jamesmacarthur.bsky.social · 06/11/2025
!!Absolutely fabulous!! A slightly surreal moment hearing Dame Joanna Lumley narrate my PhD research. Thankyou to Nina Constable and @emccandlessphoto.bsky.social for letting me play a small part in this film. A brilliant film on beavers and migratory fish!🦫🐟 Link: m.youtube.com/watch?v=uZE5...
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 03/11/2025
A great example of compromising with beavers! Beavs are stubborn little engineers and don’t particularly care to pull permits or share their design plans with us. Luckily, humans are clever engineers too and can share (not take!) control of the water with a bit of fencing and some pipes!
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Dan Dauwalter @ddauwalter.bsky.social · 25/10/2025
We are working with partners on data management and visualization for effectiveness monitoring of #processbasedrestoration . Check out the #storymap linked in our bio on the Colorado Headwaters PBR #science project. storymaps.arcgis.com/stories/4c8b...
storymaps.arcgis.com
Following the Flow
Colorado Headwaters Restoration Science Program
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 22/09/2025
Do you like learning about beavers but don't have brain space for reading another technical study right now? Do you enjoy storytelling? Are you or is someone you know a kid? If you answered yes to any of the above, then check out this episode of Terrestrials! www.wnycstudios.org/podcasts/rad...
wnycstudios.org
The Builders: How Beavers Mend Our Planet | Radiolab for Kids Presents: Terrestrials | WNYC Studios
A creature whose footprints produce and protect life.
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Eos @eos.org · 18/09/2025
🦫+🪵=💧💧💧 eos.org/articles/wha...
eos.org
What Makes Beaver Ponds Bigger? - Eos
For the first time, researchers are able to add hydrologic estimates to find where reintroducing beavers could best benefit a watershed and the humans who live within it.
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MPR News @mprnews.org · 11/09/2025
In Minnesota, beavers have long been considered a nuisance, thanks to their ability to gnaw trees and construct dams that sometimes clog culverts, raise lake levels or flood roads. But among scientists, there’s a growing recognition that these engineers bring a host of environmental benefits.
mprnews.org
As nature’s ‘ecosystem engineers,’ beavers could help fight effects of climate change
Beaver dams reduce flooding, create wetlands that boost biodiversity and can even slow wildfires. But bringing back beavers would require a shift in public attitude — and finding ways for humans and beavers to coexist.
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 31/08/2025
Beavers are admittedly chaotic and work their ecosystem magic in sometimes mysterious ways. But we’re trying our best to understand them & work together to fight wildfires! Check out this article covering Luwen’s recent paper and some of my previous fire + beavs work! www.cbc.ca/news/canada/...
cbc.ca
How beavers could help fight wildfires | CBC News
New research out of the western U.S. suggests dams and ponds built by beavers can slow floods, store water and even create green firebreaks in wildfire-prone landscapes.
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Stanford Woods Institute for the Environment @woods.stanford.edu · 11/08/2025
🦫 Bringing back #beavers – and the nature-based solutions they offer for #freshwater, #biodiversity, and #ClimateResilience New study uses #RemoteSensing to map beaver dams + ponds with an eye toward prioritizing areas for restoration and reintroducing beavers. 🔗 bit.ly/bringing-back-beavers
A woman stands in waders holding a measuring tape. Text reads "Stanford Woods Institute for the Environment, New Research, 'Our findings can help land managers figure out where beaver activity will have the biggest impact. It gives them a practical tool for using nature to solve water and climate problems.' Luwen Wan, Postdoctoral Fellow, Earth System Science, Institute for Human-Centered Artificial Intelligence"
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 11/08/2025
Many people want to bring back #beavers for water storage. Big ponds = big benefits for flood, drought, wildfire & more! But what drives big ponds? Is it *just* dam length? What drives dam length? Get your answers in this new paper by Luwen Wan, Kate Maher, & myself! www.nature.com/articles/s43...
nature.com
Factors influencing surface water accumulation in beaver pond complexes across the Western United States - Communications Earth & Environment
Dam length, woody vegetation height, and stream power index explain 74% of the variation in pond area, providing a foundation for beaver restoration and watershed management in the western US, accordi...
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Alan Puttock @alanputtock.bsky.social · 05/08/2025
New job alert! Interested in applied research increasing our understanding of water resilience, nature based solutions and rewilding? @exeter.ac.uk we are looking for a Technical Specialist, working with me and others in Geography and @uoe-creww.bsky.social jobs.exeter.ac.uk/hrpr_webrecr...
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 25/07/2025
Can you predict where a beaver will build a dam? Or how many dams they will build? There are many models for beaver habitat availability & dam building potential. One thing they all have in common? They need to be calibrated with local knowledge of place-based beaver behavioral adaptations!
onlinelibrary.wiley.com
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Mike Waddington 🇨🇦 @peatofmind.bsky.social · 22/07/2025
Check out our new paper "Ecohydrological drivers of Boreal Shield peatland fire refugia" in Ecohydrology. Authors: Alex Tekatch, Chantel Markle, Sophie Wilkinson, Paul Moore, @mercury-ecohydro.bsky.social, @peatofmind.bsky.social onlinelibrary.wiley.com/doi/10.1002/...
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Climate Disconnect @climate-disconnect.bsky.social · 18/07/2025
Beaver champion @emilyfairfax.bsky.social telling PBS News about how important beavers are in flood management. She does an amazing job of quickly and memorably explaining what beavers do and why. Also: Did you know beavers make "snuggle piles"? www.youtube.com/watch?v=wpLu...
youtube.com
WATCH: What role do beavers play in flood management?
YouTube video by PBS NewsHour
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 17/07/2025
I had the very cool opportunity to be interviewed on @pbsnews.org for "Tipping Point: the Mighty Mississippi". Check it out to hear all about how #beavers were part of the Mississippi River Basin's past, and need to be part of its future as climate changes! www.youtube.com/live/C9NyCr4...
A screenshot of me on PBS News sitting in front of the Mississippi River and the Saint Anthony Falls Lab, talking about beavers.
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 14/07/2025
Me, standing on a dam and talking to a film crew: sorry we will almost certainly not see any actual beavers today. They’re usually sleeping in the middle of the day, especially when it’s super hot out like today. This beav at 12pm sharp: sup
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Dr. Sarah Fortner @erthsarah.bsky.social · 10/07/2025
Thanks @emilyfairfax.bsky.social for the great tour of Saint Anthony Falls Laboratory! Excited to hear about your projects underway & to see the coolness of this science & the Mighty Mississippi up close! @carleton.edu loves beavers too! Can’t wait to see you flood an experimental channel.
Me, Roger Faust, Emily Fairfax, channel that will be flooded behind us & current algae oxygen production experiment by another lab.Wetland experimentEvery sensor known to humanity monitors the Mississippi The welcome sign & wetland
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 25/04/2025
Things I’d like to learn from #beavers: how to be famously productive while also being unhurried, unstressed, and peaceful as I go about my work.
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Daniel Swain @weatherwest.bsky.social · 23/04/2025
If you've heard me talk about Western U.S. wildfire, you've probably heard me mention that while *baseline* fire risk is lower in the (moister) East, the *conditional* risk can still be extremely high when conditions align (including, as here, in and downwind of pine barrens in New Jersey today).
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 07/04/2025
Happy International #Beaver Day! Do you have a question about beavers, their wetlands, or how they relate to climate change? Ask it here! I’ll be sharing bits of beaver knowledge throughout the day, and if there is a question I *don’t* know the answer to, I will know who to ask to get it!
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Dr Wernerehl @drwernerehl.bsky.social · 01/04/2025
@emilyfairfax.bsky.social Glad you came over from Twitter. I thought you'd like a couple Massachusetts beaver photos that almost look like artwork. These they are carving in a solid white oak, March of 2025 on the Stillwater River. We seem to have hardy beavers here.
Photo of a standing white oak tree a full 1 ft in diameter having been chewed halfway through by beavers. Photo of a standing white oak tree a full 1 ft in diameter having been chewed halfway through by beavers.
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 28/03/2025
Need some easy Friday listening? Interested in #beavers? Check out the latest episode of the Western Governor's Association podcast! Me, Alex Funk, Chris Jordan, Marshall Wolf, and Jerry Altermatt talk beavers, BDAs, science + policy & connect it to disaster mitigation. westgov.org/news/article...
westgov.org
Leave it to Beaver: How Nature’s Engineers are Helping Us Mitigate Disasters
The history of the West has always been defined by water. Long before settlers arrived, Indigenous peoples designed complex water management systems to cultivate the arid land. In the 19th and 20th ce...
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Robyn | Water Cycle Colors @watercyclecolors.bsky.social · 19/03/2025
My lastest #sciart project, inspired by work I've been doing in river restoration, highlights riverscape complexity caused by #beaver and large wood. Complexity makes a great patchwork of habitat allowing a variety of organisms to thrive. We love a messy river! 🧪
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Miles O'Brien @milesobrien.com · 21/02/2025
A wildfire swept through Wyoming’s Medicine Bow Forest in 2020, yet one green oasis remained: a beaver-engineered wetland. 🔥 Scientist @emilyfairfax.bsky.social is proving what nature has long known: beavers are the solution. 📺 Full story: youtu.be/F-HWKkIyfl0?... #BeaverPower #ClimateResilience
youtu.be
Why engineers are turning to beavers for insights into managing water resources
YouTube video by PBS NewsHour
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Alan Puttock @alanputtock.bsky.social · 20/02/2025
The 3rd and final #beaver site surveyed in the River Otter catchment this week. Upstream of the village of East Budleigh, our monitoring has shown this wetland to significantly reduce downstream peak flows. @exeter.ac.uk
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 13/02/2025
A happy bit of news! Feat. a quote from me describing beavers as big chicken nuggets for predators while explaining why beavers build dams. 😎🦫🍗
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 07/02/2025
Me, two of my PhD students, and one of my postdocs were featured on @pbs.org NewsHour this evening for our work on #beavers and #wildfire in Colorado and Wyoming! Check it out! youtu.be/F-HWKkIyfl0?...
youtu.be
Why engineers are turning to beavers for insights into managing water resources
YouTube video by PBS NewsHour
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 28/01/2025
A lot of folks think when #beavers cut trees down or clip off branches then the tree just dies. But actually, many of the trees beavers like to cut have evolved to re-sprout from the stump and grow back even stronger. Trying to channel my inner beaver-chewed-tree, today.
A tree that a beaver has cut many branches off of that has lots of new sprouts coming out of it.A beaver chewed stump surrounded by new shoots and branches.
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Cloe Logan @cloelogan.bsky.social · 03/01/2025
Beavers dig channels between their dams which @emilyfairfax.bsky.social describes as “little water highways” which makes “it easier for them to get around, move building material, but critically, it's also spreading water out.”
Emily Fairfax in a blue sweater and sunglasses in a wetland. Photo courtesy of Fairfax
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Caitlin MacKenzie @cmacmtns.bsky.social · 13/12/2024
I asked the class to write a note to future ecology students. I received this masterpiece from the fifth row.
a cartoon beaver adorned with a hair or and little star stickers says “hey, hey you there… be the ecosystem engineer of your own life ❤️” The beaver is holding a gift and an arrow pointing at the gift notes “the present is you, and the knowledge you gain in this class.” above the beaver are bullet points of advice: don’t panic; shine bright; always bring snacks; you go girl!
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Dr. Emily Fairfax @emilyfairfax.bsky.social · 12/12/2024
BEAVERS! BEAVERS! BEAVERS! Come hear *three* awesome talks in a row about beavers at #AGU24! Where: 144A-C When: 10:20am on Thursday Why: beavs are great and we have cool science on them
A photo of a beaver lodge in a pond with a recently chewed tree in the foreground.
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Dr. Jeff Masters @drjeffmasters.bsky.social · 01/12/2024
“Compared with areas with no wetlands, wetland areas can reduce surface runoff by 15 to 30% and enhance soil retention by 30 to 50%, thereby decreasing flood peak levels by 10 to 25% and lowering the risk of mountain floods and debris flows.” www.science.org/doi/10.1126/...
science.org
Small wetlands: Critical to flood management
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