"Colorado To Adopt California’s Stricter Car Pollution Rules"

"DENVER — Colorado’s governor on Tuesday ordered his state to adopt vehicle pollution rules enforced in California, joining other states in resisting the Trump administration’s plans to ease emission standards.

Democratic Gov. John Hickenlooper told state regulators to begin writing rules that incorporate California’s low-emission standards with a goal of putting them in place by the end of the year.

Hickenlooper said the strict standards are important to Colorado, citing climate change and noting the state’s elevation makes pollution worse."

Dan Elliott reports for the Associated Press June 20, 2018.