Former Republican Gov. Doug Ducey's border barrier of shipping containers has been largely dismantled in time for a new Democratic administration, costing tens of millions of dollars over just a few months as they were set up and taken down again.

Progress on Gov. Doug Ducey’s shipping container border barrier has been halted in Cochise County since late November as activists stand in front of heavy machinery. 

A national environmental group wants to join the legal battle to force Gov. Doug Ducey to take his shipping containers off the international border.

Gopher tortoises — burrowers whose extensive homes shelter many other animals — are generally doing well and need federal protection only in the small area where they were declared threatened 35 years ago, according to the federal government, though the decision is likely to disappoint an Arizona-based environmental organization.

The Arizona-based Center for Biological Diversity filed a lawsuit Tuesday against the U.S. government, accusing it of endangering wildlife and humans as it prepares to dredge and expand Puerto Rico's biggest bay to accommodate massive tankers that will serve a new liquid natural gas terminal.

When the Supreme Court ruled this summer that the EPA could not force power plants to move away from fossil fuels, advocates worried that the justices had removed the “most effective tool for regulating and reducing greenhouse gas emissions.” 

Charging the federal government and Army are lying, environmental groups asked a federal judge Tuesday to order them to take another look at how the operation of Fort Huachuca is affecting the San Pedro River.

Arizona lawmakers and advocates said they were “blindsided” by the U.S. Forest Service’s abrupt announcement this week that it would halt negotiations on a proposed extension of the Four Forest Restoration Initiative. 

While Democrats work on two fronts to protect the Grand Canyon, conservationists disagree on one of the measures.

Attorney General Mark Brnovich is hoping to use federal environmental laws to force the Biden administration to resume construction of the border wall.