Trump Administration sues California over tailpipe emissions limits
A lawsuit argues that the state’s regulations would illegally force a rapid transition to electric vehicles.

Colorado lawmakers will once again consider a bill to place protections for people who work in extreme heat or cold, this time offering a phased approach.
Meat and dairy giants have been accused of halting climate progress by cozying up to policymakers to justify the soaring growth of animal agriculture.
The Colorado River water crisis isn't hitting everyone equally — century-old water laws mean that some communities face existential threats while others remain secure.
Cycle lanes, electric cars and other interventions have helped 19 global cities slash levels of pollutants by more than 20%.
