Critical Colorado River update here. Minimum power pool still looms large on Lake Powell’s horizon. Operation of the penstocks and entrainment of bass remains a threat to humpback chub and other ESA-listed fish.

Lawsuit launched to protect critical habitat for Bartram’s stonecrop. Each of this canyon-dwelling beauty’s remaining US populations is tiny and at risk of extirpation from mining water use and other threats. Critical habitat will help secure its future. biologicaldiversity.org/w/news/press...

Judge Patti Saris of the U.S. District Court for the District of Massachusetts vacated Trump’s Jan. 20 executive order blocking wind energy projects and declared it unlawful.

@biologicaldiversity.org is suing to wipe Trump's face off the America the Beautiful National Parks pass. By law, the pass must display the winning photo of a federal #PublicLands picture contest. Instead, Trump plastered his own face on it. Trump's vanity pass is not American, beautiful, or legal

Huge mine trucks and other heavy trucks may soon face strict limits on how many can travel and how fast they can travel on dirt roads in unincorporated Pima County.

My friend Joe has been missing for several days. With each passing day the likelihood that he was just on a long walkabout fades. In 1983 he found a 14K year old mammoth petroglyph, the first found in North America. Here's a short film about him and his sculpture. Brilliant. youtu.be/5t5jU0KzeZs?...

The Center today released video of detonations underway in the Huachuca Mountains -- in critical habitat for endangered jaguar and Mexican spotted owl -- for a double border wall that will block wildlife (but not people) moving between the U.S. and Mexico. Link to PR, video tinyurl.com/y752jz55

The Center for Biological Diversity petitioned the U.S. Fish and Wildlife Service today to protect Allred’s flax under the Endangered Species Act. This rare flowering plant is found only in the Permian Basin in New Mexico and Texas. biologicaldiversity.org/w/news/press...

A new documentary, The Land of Sacrifice: The Burden of New Mexico's Oil and Gas Extraction, explores the oil and gas crisis in NM and its damage to the health of frontline and Indigenous communities and degraded the ecosystem. The Land of Sacrifice is free for anyone to watch ➡️ bit.ly/4okDhgq

Breaking The University of Arizona Wild Cat Research and Conservation Center (WCC) has tonight confirmed a brand-new jaguar in the United States, Jaguar #5, never before identified, just days after the Trump administration’s new double border wall construction waivers (see below).

ICYMI: Newly issued waivers allow hundreds of miles of new border infrastructure — including double walls, patrol roads, and industrial lighting — in the last open corridors for jaguars, ocelots and dozens of other animals moving between the U.S. and Mexico. biologicaldiversity.org/w/news/press...

The Center today moved to end a livestock industry lawsuit that'd tried unsuccessfully to stop the Forest Service from removing feral cows from the Gila Wilderness. With the removal complete and cows gone, endangered species habitat along the Gila River is recovering beautifully.

“Looks like a sewer…” Each year the Center surveys ~500 stream miles of endangered species critical habitat on public lands in southwestern riparian areas for livestock grazing damage. We find lots, prompting legal action. As shown here, it can be horrifying. www.propublica.org/article/graz...

Here at #COP30, attendees are lauding AI as an antidote to the climate crisis. While AI can deliver benefits, countries must address AI’s grave costs to our climate, water, & planet. Happy to unpack this w/ @democracynow.org @amygoodman.bsky.social www.democracynow.org/2025/11/19/j...

The Center for Biological Diversity petitioned the U.S. Fish and Wildlife Service today to protect the Mule Mountains population of the Yarrow’s spiny lizard under the Endangered Species Act. biologicaldiversity.org/w/news/press...

The federal magistrate judge on the case had granted the Department of Homeland Security to pause the challenge by the Center for Biological Security, citing the government shutdown.

In beautiful, powerful prose, a resolution from the San Xavier District of the Tohono O’odham Nation celebrates a deep cultural history with jaguar while calling for its protection and reintroduction to historical US range — reaching northward to the Grand Canyon. 👇🏻

This is unprecedented partisan politicization of a public land agency website. I admit chuckling at the sinister irony of “three cheers for volunteers” amidst a shutdown. Lack of agency staff - like for endangered species critical habitat enforcement - risks real to harm our most vulnerable species.

This is like IBM launching a model year 2025 typewriter. www.blm.gov/press-releas...

"Gosar's bills mark a new low in his career of servicing industry's interests over the public's," said Taylor McKinnon, Southwest director with the Center for Biological Diversity. via @pmingram.tucsonsentinel.com, @tucsonsentinel.com www.tucsonsentinel.com/local/report...

A new bill in the U.S. House seeks to abolish the Baaj Nwaavjo I’tah Kukveni–Ancestral Footprints of the Grand Canyon National Monument. The monument honors Tribal Nations, protects sacred lands, and reflects the will of the people: thttps://buff.ly/yTVYymT

Here, a new account of C. Hart Merriam's biological survey of the San Francisco Peaks. May, Roy Jr. 2024. The Merriam Expedition to San Francisco Mountain: Life Zones and the Founding of Ecology. Journal of the Southwest. Vol. 67, No. 4, 391-555. muse.jhu.edu/article/961009

For those interested in Southwestern forest fire ecology, this presentation on the structural legacies of moderate severity fire in ponderosa pine forests is both informative and worth watching. youtu.be/kfzRZxorQAU?...

Biodiversity Battle in the Borderlands: I recently spoke with Russ McSpadden @peccarynotpig.bsky.social from @biologicaldiversity.org. Hear stories about Jaguars, Ocelots, Bears, a huge number of bird species, and what you can do to help protect them. www.youtube.com/watch?v=3Ech...

The Roadless Rule has protected nearly 60 million acres of roadless national forests since 2001. But now, the Trump administration wants to strip protections from 45 million of those acres. The public comment period is only open until Sept. 19th. Please add your voice ➡️ https://bit.ly/3IeiP1D

The Center today filed a 671-page notice of intent to sue federal agencies to end chronic, multi-year, and often severe damage from cattle grazing to almost all of the streamside critical habitat for endangered species on the Tonto National Forest. biologicaldiversity.org/w/news/press...

If you love birds, here's something you can do to protect their habitat. The US Forest Service is proposing to open 45 million acres of national forests to road bulldozing and commercial logging. Here's how to fight back. #birds. www.outdooralliance.org/blog/2025/8/...

Breaking: Trump's DHS waives all enviro laws to wall off premier Texas Wildlife Refuge. There’s a special cruelty in walling off a wildlife refuge created for conservation. All under the guise of a fake emergency, as border crossings are at record lows. biologicaldiversity.org/w/news/press...

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We were thrilled to interview Elise Bennett on last month's Animal Law Podcast, and we are even more thrilled to hear this incredible news! Listen to the details of the case: ourhenhouse.org/alp122

Following a Center for Biological Diversity lawsuit, a federal judge today ordered Florida and the Trump admin. to halt construction, stop bringing new detainees, and begin winding down operations at “Alligator Alcatraz” in Big Cypress National Preserve. biologicaldiversity.org/w/news/press...

Tree-ring fire records from 649 pine trees in central and eastern Arizona show that fires occurred more often in the territory of the Western Apache, or Ndee, than in other regions between 1600–1870, suggesting a culturally controlled fire regime. In PNAS: www.pnas.org/doi/10.1073/...

PHOENIX— The 9th U.S. Circuit Court of Appeals issued an emergency injunction today blocking the Trump administration from handing Oak Flat over to a private mining company while three lawsuits challenging the land exchange proceed. biologicaldiversity.org/w/news/press...

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The Center yesterday petitioned the Fish and Wildlife Service to protect the Willcox Playa tiger beetle under the Endangered Species Act. The endemic beetle is threatened by climate change, water diversions, and groundwater pumping that are drying the playa. biologicaldiversity.org/w/news/press...

Good news 🎉 Endangered Mexican gray wolf, Asha, has been released into the wild along with her mate and pups. Asha twice roamed north of Interstate 40 in New Mexico before being captured and kept in prolonged captivity for having strayed beyond the arbitrary boundary. Read on ➡️ bit.ly/45xxPPY

The Center and allies have won a temporary restraining order on further construction of "Alligator Alcatraz." Our fight to put an end to this destructive and unjust project goes on. The Everglades should be home to wildlife, not prisons. Read on ➡️ bit.ly/4fvbmYn #AlligatorAlcatraz

The New York Times today featured the Center for Biological Diversity's recent report about and litigation challenging newly proposed border wall that would sever the most important migration corridor for wildlife like jaguar between Arizona and Mexico. www.nytimes.com/2025/07/31/c...

Fourth lawsuit launched to challenge the land transfer of Apache sacred site to Resolution Copper.

On the heels of our recent Bendire's thrasher petition, the Center for Biological Diversity today petitioned the U.S. Fish and Wildlife Service to protect the LeConte’s thrasher under the Endangered Species Act. biologicaldiversity.org/w/news/press...

I talked to @deedaseed.bsky.social, who is among those suing Utah over its handling of the Great Salt Lake. "We’re facing a crisis of our own making here and we can unmake it," she said, calling on everyone to consider how they use water: www.fox13now.com/news/great-s... #utpol #Utah

The Turkeyfeather Fire in the Gila Wilderness, NM has burned as a low-severity fire over about 24,000 acres (so far). This is a continuation of a fire regime that existed for millennia before the 20th century. This 🧵reviews the fire history of the Gila, as my colleagues and I have studied it. 1/18

BREAKING: The Center for Biological Diversity sued the Trump Admin today for unconstitutionally waiving dozens of enviro laws to speed border wall construction across San Rafael Valley in AZ’s Sky Island region, a biodiversity hotspot w/the most significant jaguar corridor remaining along border.

We just sued the Trump administration for waiving dozens of environmental laws to speed border wall construction through the San Rafael Valley in Arizona’s Sky Island region. More info: biodiv.us/462nspc

The Center joined thirty-five other conservation groups to send a letter to the U.S. Department of the Interior and the U.S. Fish and Wildlife Service requesting the immediate release of Mexican gray wolf Asha, her mate and their five puppies. More info: biodiv.us/4eFtqyp

Good news today: A federal judge has ordered the Trump administration’s Fish and Wildlife Service to make a long-overdue decision on whether to expand critical habitat for Arizona’s highly endangered Mount Graham red squirrels. biologicaldiversity.org/w/news/press...

Good news 🎉: A century after wolves were wiped out in California, the iconic animals have mounted a promising comeback in the state, with a small population that has grown to at least 50 wolves, according to a new California Department of Fish and Wildlife report. Learn more: biodiv.us/4kjV4SM

A report published today by the Center for Biological Diversity exposes how the Trump administration’s plans for new border wall in southeast Arizona's San Rafael Valley would block the most important remaining jaguar corridor connecting the U.S. and Mexico. biologicaldiversity.org/w/news/press...

KFA This fight isn’t over, and there’s still a ton of corruption in this bill, but this is good news nonetheless. Thanks to each if you who made calls and sent emails. You made the difference; this is your victory. biologicaldiversity.org/w/news/press...