"Several environmental groups are suing federal regulators over what they say is a failure to set safe limits on harmful chemicals pouring into waterways from refineries, including eight facilities in Louisiana that are considered among the nation’s top polluters."

"The Environmental Protection Agency proposed Tuesday to limit the use of the chemical ethylene oxide after finding higher than expected cancer risk at facilities that use it to sterilize billions of medical devices each year."

"The Iowa House passed legislation Tuesday restricting drone surveillance of livestock facilities without the permission of the property owner."

"The Interior Department on Tuesday shared its proposal for expected cuts to Colorado River water allocations but acknowledged that the most extreme options — including a plan that would slash water deliveries to Arizona and Nevada — are unlikely to be included in a final decision this summer."

"EPA will propose tailpipe emissions rules Wednesday that could exponentially increase the number of electric vehicles on the nation’s roads within a decade."

"A senator questioned the EPA chief and a group sued the agency after ProPublica and the Guardian revealed that the EPA gave a Chevron refinery approval to make a fuel that could leave people nearby with a 1-in-4 lifetime risk of cancer."

"A 2007 law requires new and remodeled federal buildings to stop using fossil fuels by 2030. But implementation stalled. The Department of Energy finally appears ready to put regulations in place."

"Despite new “guidance,” the Forest Service moves to clear-cut mature pines in Montana without a detailed accounting of the cost in carbon emissions."

"A lawsuit that Louisiana and other Republican-leaning states filed challenging figures the Biden administration uses to calculate damages from greenhouse gasses was dismissed Wednesday by a federal appeals court."