Now: The Center for today filed a 60-day notice of intent to sue FWS and AZGF for ESA violations relating to decades of federal funding of invasive fish stocking in Arizona, which has decimated the native fish and other aquatic species. biologicaldiversity.org/w/news/press...

Now: Amid fierce local organizing and good old American civics, an aluminum plant threatening toxic air pollution in Benson, Arizona, and depletion of water from the biologically diverse San Pedro River was scrapped today. Robin Silver Photo biologicaldiversity.org/w/news/press...

Now: The Center for Biological Diversity today expanded our Big Bend litigation to challenge the Department of Homeland Security’s action on Tuesday waiving dozens of environmental laws to build border barriers and roads through Big Bend National Park. biologicaldiversity.org/w/news/press...

Now: Tribal and conservation groups today sued the U.S. Fish and Wildlife Service to stop a land trade that would hand 715 acres of the Lower Rio Grande Valley National Wildlife Refuge in south Texas to SpaceX. biologicaldiversity.org/w/news/press...

Now The Center for Biological Diversity sued two Interior Dept. agencies today for failing to protect endangered species and their streamside habitat from unauthorized cattle and grazing damage in southern Arizona’s Las Cienegas National Conservation Area. biologicaldiversity.org/w/news/press...

An appeals court today rejected cattle growers' challenge to the Forest Service's removal of feral cattle from the Gila Wilderness. The Center had urged the dismissal. Three years cow-free, the Gila River's endangered species habitat is now recovering. biologicaldiversity.org/w/news/press...

The Center for Biological Diversity sued the Trump administration today for failing to finalize Endangered Species Act protections for the Quitobaquito tryonia, a tiny springsnail found only in Quitobaquito Springs in Organ Pipe Cactus National Monument. biologicaldiversity.org/w/news/press...

Freshwater mussels are living water filters that help keep rivers clean, clear and healthy. We sued the USFWS this week for for failing to designate critical habitat for the endangered Texas hornshell, a freshwater mussel once common across the Rio Grande watershed in Texas and New Mexico. ⬇️

A trail cam check on Monday revealed 3 clips of a beautiful male jaguar in a Sky Island south of Tucson, in the ancestral lands of the Tohono O'odham. Jaguars’ northern range is being ripped apart by border wall, mining, groundwater depletion and climate-driven drought. @biologicaldiversity.org

New photos here of damage from CBP blading a 50-foot-wide border wall road through the desert intaglio - a 1000-year-old, 272-foot-long fish carved into the desert floor along the U.S.-Mexico border. It aims south to the Gulf of California 45 miles away. biologicaldiversity.org/w/news/press...

How writing about #extinction is an inherently hopeful act. therevelator.org/why-i-write-...

My colleagues Calvin Farris (NPS) and Ellis Margolis (USGS) led a landmark study in paleofire reconstruction. In addition to showing that fire management can restore past fire regimes, the demonstrated methods are a first in dendrochronology. 1/6 esajournals.onlinelibrary.wiley.com/doi/10.1002/...

New fire study of eastern Mogollon Plateau: 2011 Wallow Fire, Arizona's largest on record, was similar in size to fires in 1748, 1847, 1851 Avg. return interval of fires > 100,000 ha is 20 years Fire deficit persists with 85% reduction in avg. annual area burned link.springer.com/article/10.1...

For the first time in decades, a radio-collared wolf last week relocated from the United States into Mexico. The wolf, dubbed “Cedar,” crossed through the last stretch of southern New Mexico without a border wall in the remote Bootheel region. biologicaldiversity.org/w/news/press...

Now: The @biologicaldiversity.org today filed a notice of intent to sue federal agencies to end unauthorized livestock grazing damage to endangered species habitat on Arizona's upper Verde River, the second such suit against the agencies in recent years. biologicaldiversity.org/w/news/press...

Now: The @biologicaldiversity.org today filed a notice of intent to sue the Trump administration over its plan to expand livestock grazing on public lands across the Western U.S., including within Grand Canyon National Park and several national monuments. biologicaldiversity.org/w/news/press...

Now: The Center for Biological Diversity, San Carlos Apache Tribe and Lower San Pedro Watershed Alliance just notified federal agencies of our intent to sue over Endangered Species Act violations at the Copper Creek Exploration Project near Mammoth, AZ. biologicaldiversity.org/w/news/press...

Dozens of Tribal, conservation, faith, and community advocates today urged Arizona Gov. Katie Hobbs not to auction thousands of acres of state trust land near the Gila River that would become a massive mine waste dump for the proposed Resolution copper mine. biologicaldiversity.org/w/news/press...

There is a huge shift in climate politics happening RIGHT NOW in Santa Marta, Colombia. Countries are meeting to discuss a treaty to phase out fossil fuels -- the one issue that #UNFCCC has studiously avoided for 30 years. 🧵

Most endangered species in the Southwest live in streams and riparian areas. Three main threats to those habitats are drying, invasive species, and unauthorized grazing. Monitoring 600+ stream miles of critical habitat annually, we document cattle damage and, as here, bring corrective lawsuits.

Powell pool elevation of 3500’ will optimize smallmouth bass entrainment through Glen Canyon Dam as hydropower urges BOR to abandon cool mix flows suppressing their reproduction downstream. Decades of humpback chub recovery progress in the Grand Canyon hangs in the balance this year.

Colorado River decline is increasingly dangerous for Grand Canyon's humpback chub. Record low pool elevations at Powell mean far more bass passing through the dam, and hydropower is urging BOR to end cool mix-flows that suppress bass recruitment downstream. biologicaldiversity.org/w/news/press...

The feds are moving forward with plans to wall off the Big Bend region. Some reports say walls are "off the table" in the state park, but DHS hasn't canceled construction contracts or restored the legal protections they stripped. Nobody is crossing here. Look at those cliffs.

The mountains from Mexico’s Sierra Madre northward through the Sky Islands to the Mogollon Highlands of AZ and NM once supported wolves, grizzlies, and jaguars. It’s heartening to see bi-national reintroduction programs and communities now piecing ecosystems back together. ktar.com/arizona-news...

TERLINGUA, Texas— The Center for Biological Diversity and Texas Civil Rights Project sued U.S. Customs and Border Protection today for withholding public records on plans to build border walls through the Big Bend region of Texas. biologicaldiversity.org/w/news/press...

The Center for Biological Diversity and Health Over Wealth Benson are urging the U.S. Environmental Protection Agency to reject an air pollution permit for a proposed aluminum plant that could harm Arizona communities and the San Pedro River's biodiversity. biologicaldiversity.org/w/news/press...

Breaking: A federal court today ruled that federal agencies violated the Endangered Species Act by ignoring years of damage from illegal livestock grazing to desert stream habitat for endangered fish and birds in the Agua Fria National Monument in Arizona. biologicaldiversity.org/w/news/press...

A federal court has overturned four key provisions of regulations that weakened the Endangered Species Act, issued by the Trump administration in 2019 and retained under the Biden administration. biologicaldiversity.org/w/news/press...

In the last ~6 wks The Breakthrough Institute: 1. Filed an Amicus brief in the 9th Circuit supporting Trump’s “energy dominance” agenda; 2. Tacitly supported Trump’s rescission of EPA’s Endangerment Finding. 3. Blamed scientists for Trump’s attacks on climate science. Conclude as you will.

This is a graph of snowpack above Lake Powell using 104 snow measuring stations. It was 9 inches of water on March 7, now 6 inches. Other dry years shown.There is no historical analog to this.

The Center for Biological Diversity today filed notice of intent to sue the Bureau of Land Management and U.S. Fish and Wildlife Service over unauthorized cattle grazing damage to endangered species riparian habitat in Las Cienegas National Conservation Area. biologicaldiversity.org/w/news/press...

"The war and the Iranian blockade of the Strait of Hormuz are pushing more people to recognize that fossil fuel is politically as well as environmentally devastating."

The Trump administration is preparing an end-run around the Endangered Species Act to benefit oil drilling that could drive a rare whale to extinction. biologicaldiversity.org/w/news/press...

BREAKING — More than 130 conservation groups, outfitters and rural Texas businesses urged Congress today to block federal funding for border wall construction in Big Bend National Park and Big Bend Ranch State Park. biologicaldiversity.org/w/news/press...

The Center for Biological Diversity, San Juan Citizens Alliance and Tó Nizhóní Ání took legal action against New Mexico today for failing to require hundreds of oil and gas operators to plug thousands of dangerous inactive wells. biologicaldiversity.org/w/news/press...

Big Bend border wall protest this morning in Terlingua, Texas, population 138. Rural Texas is not going to let this administration come lock their river behind a wall of steel.

Utah's congressional delegation is weaponizing the Congressional Review Act to upend Grand Staircase-Escalante National Monument's management plan, undermining protections and promoting chaos. Tell them no. Take action here. act.biologicaldiversity.org/auwYpPaip0iQ...

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Consumer Advocates Could Derail Blackstone’s Utility Acquisition in New Mexico prospect.org/2026/02/19/b...

Poring over historical US jaguar records and arranging them in a timeline reveals most of the last females and cubs were in the Mogollon Highlands. This region, from Grand Canyon to the Gila - far north of the US/MX border - seems to have been jaguars' last remaining breeding population in the U.S.

Reclamation’s power pool projection for Dec at Glen Canyon Dam sets up for more Upper Basin drought releases and less from Powell this year. But it’s also ominous for the Grand Canyon’s humpback chub; a low lake and warm water threaten to pull a dangerous new pulse of invasive bass through the dam.

A great perspective from Stephen Trimble on the Utah delegation's attack on Grand Staircase-Escalante. Read it now: writersontherange.org/a-utah-monum...

Our take: “They’re popping champagne corks at the OPEC and GM headquarters but also in Beijing, where China’s EV makers will face no competition from the US to dominate the world’s clean car market.” Dan Becker @biologicaldiversity.org By Jim Motavalli www.autoweek.com/news/a703945...

After field surveying 122 steam miles of the Tonto National Forest, the Center yesterday sued the Forest Service and Fish and Wildlife Service for allowing ongoing damage from illegal livestock grazing to endangered species habitat in 25 grazing allotments. biologicaldiversity.org/w/news/press...

The Center today sued the Bureau of Land Management and US Fish and Wildlife Service for illegally reapproving a highway through Utah's Red Cliff's National Conservation Area. biologicaldiversity.org/w/news/press...

I find it remarkable that Governor Lujan Grisham, time and time again, goes out of her way to accommodate the oil & gas industry--even when it means condoning legislation that would overturn complex rulemaking completed by her own regulatory commissions.

“We’ll keep fighting this high-speed roadway because it’s both unlawful and unwise to sacrifice important wildlife habitat on our protected public lands for more urban sprawl.” - Lisa Belenky, senior counsel at the Center for Biological Diversity. biologicaldiversity.org/w/news/press...

When a motorsports outlet sounds the alarm about Utah's attempt to exert control over federal public lands, Gov Cox oughta listen. Just like Mike Lee, Cox's goal here kick the public off our shared land & turn it over to industry pillage. Everyone opposes that. www.rideapart.com/news/784140/...

The Center for Biological Diversity sued the Trump administration today for denying Endangered Species Act protections to the Rio Grande cooter. These freshwater turtles’ fragmented range includes rivers in southern New Mexico, Texas, and Mexico. biologicaldiversity.org/w/news/press...

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