U.S. Environmental Protection Agency
An old smelter in Pueblo is now a Superfund site, clearing the way for an eventual cleanup.
Out of all the states in the nation, Colorado offers the best sneak peek at what the nation would look like once President Barack Obama’s energy regulations take effect.
An environmental group is asking a federal appeals court to review part of Colorado’s plan for cutting air pollution and haze.
From the East Coast to the West Coast, recycling is a big issue for local governments.
The U.S. Environmental Protection Agency has given final approval to Colorado’s strategy to reduce pollution, which relies on switching some coal-fired power plants to natural gas.
Colorado health officials have issued a new cease-and-desist order to Lone Pine Gas Inc., alleging violations of the Colorado Water Quality Control Act.
Colorado is working through a backlog of applications for air pollution permits for oil and gas facilities.
The Colorado Supreme Court is considering whether state regulators must hold a public hearing on proposed natural gas drilling near a nuclear blast site in western Colorado.
A federal official says U.S. farmers shouldn’t be too concerned yet about stricter federal regulations on farm dust.