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Beavers could be the key to fighting climate change in the Southwest


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It鈥檚 a beautiful day in the Jemez Mountains.

The early summer morning air is crisp 鈥 but not cold enough for a jacket 鈥 and dead silent. Above, a couple clouds lazily float across the deep blue sky.

As our group of 20 or so people clad in waders and hiking gear trudges along a rudimentary path deep in the woods, the ground quickly turns muddy. Soon the path widens, revealing a beautiful meadow lined with walls of tall ponderosa pine. A thin creek divides the land into two.

鈥淲e鈥檙e going to cross the creek and go over to the first set of holes which is, well, either here or there,鈥 said Karen Menetrey from the environmental organization . It focuses on restoring damaged ecological systems across the state.

The goal today is to plant batches of willows for riparian wildlife 鈥 especially, the beaver.

The willow is usually seen as a 鈥, but it plays a vital role in beaver survival, providing food and shelter in the winter. It鈥檚 also the construction material for the dams they create.

Volunteers place bundles of pre-cut stems into 3-foot-deep holes underneath the water table. They trim any leftover leaves and throw water into the hole.

Then, they use long sticks to tamp dirt into and around the hole 鈥 mainly to avoid any air bubbles.

Menetrey said widespread trapping in the 1860s and 70s in New Mexico nearly decimated the beaver population. Historically, beavers in the U.S. were killed for their fashionable pelts and unique scent glands typically used in perfumes or food flavoring.

鈥淎nd they are extirpated from some watersheds,鈥 Menetrey said. 鈥淲hich means they鈥檙e not extinct, but they are gone from that particular area.鈥

An estimated right now, but Menetrey said exact counts don鈥檛 exist. Currently, Defenders of Wildlife is working on a beaver 鈥渃ensus鈥 of sorts to identify dams using aerial photography.

All of this work to reintroduce the beaver back into New Mexico鈥檚 streams and rivers is part of a larger push to combat climate change here in the Southwest.

鈥淭hey're really like climate resilience superheroes and super engineers,鈥 said Chris Smith, the brain behind a newly launched venture dubbed the .

Smith鈥檚 vision is to reestablish the widespread benefits beavers and their dams had on New Mexico鈥檚 landscapes before commercial trapping, like ecological watershed maintenance. Plus it鈥檚 free charge because, well, beavers aren鈥檛 motivated by dollar signs.

鈥淲e have all these vacant waterways, and they could be repopulated by beavers, but we currently don't have a relocation and restoration program,鈥 Smith added.

New Mexico does, but only in certain areas at certain times of the year. Nowadays, tens of thousands of beavers are still snared, trapped, or shot across the country every year.

The Department of Game and Fish has tried its hand at some relocation and reintroduction efforts,

In 2014, the requesting a beaver restoration plan from the Department of Game and Fish. They never got one.

The state does have some guidelines that make it fairly difficult for beaver relocation to happen 鈥 namely the five-mile upstream, five-mile downstream protocol, mandating all landowners within that radius give their explicit written consent for beavers to live there .

With a recent massive windfall of state revenue from the oil and gas industry, Smith wants some of that money to be set aside specifically for beavers to increase the state鈥檚 resilience to climate change.

鈥淏eavers, I think, are one of the most cost effective ways to do that,鈥 Smith said. 鈥淭here's a budgetary reason to do it.鈥

In addition to helping with floods, beaver dams improve water quality, remove pollutants, and, surprisingly, help fight wildfires.

Emily Fairfax at the University of Minnesota鈥檚 Department of Geography, Environment, and Society.

鈥淲hen beavers fight wildfires, that's actually sort of the last step of the number of disasters that they're helping us mitigate,鈥 Fairfax said.

Fairfax says some people may see beavers as a 鈥渘uisance,鈥 because they may chew on a property owner鈥檚 favorite tree, or accidentally flood a field or road.

But, she said the pros outweigh the cons.

The semi-aquatic rodents are really good at slowing down and storing water in the ground during storms and runoff seasons, she said. That allows water to be available to plants during droughts.

鈥淭hroughout the whole year, beavers are manipulating the hydrologic cycle in a way that builds up defense to a whole suite of natural disasters, and the wildfire really matters, because that's one that we struggle to manage ourselves,鈥 Fairfax said.

These engineering marvels are pivotal to the survival of other species during a wildfire as well. Fairfax said beaver wetlands are too lush and wet to burn 鈥 providing a crucial fire break, slowing the blaze down.

鈥淎 single beaver family can engineer acres and acres and acres of these fireproof patches,鈥 Fairfax said. 鈥淭hey are the safe place in the landscape, and we need more of it.鈥

Fairfax and Smith said the challenge is to overcome societal perceptions that beavers are merely obnoxious, toothy rodents and teach people that the beaver is much more valuable than a perfume ingredient or a fancy hat.

Corrected: July 20, 2024 at 1:02 AM MDT
A previous version of this story incorrectly attributed Emily Fairfax as saying beavers eat fish. In fact, beavers are herbivores.
Bryce Dix is our local host for NPR's Morning Edition.
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