After a tumultuous week that included an appellate court flip-flop over a last-minute injunction, a $10 million land swap designed to secure a crucial...

A federal appeals court on Wednesday temporarily blocked an elaborate land swap designed to supply a crucial right-of-way for the controversial Jeffer...

A day after blocking an elaborate $10 million land swap designed to supply a critical right-of-way for the controversial Jefferson Parkway, a federal ...

DENVER -- An environmental group has petitioned the federal government to reduce air pollutants in eight western states. WildEarth Guardians says tha...

BILLINGS, Mont. — An environmental group asked a federal judge on Monday to delay action on a proposed legal settlement that would require the g...

Three Boulder County youths are suing the State of Colorado for polluting the atmosphere, contributing to global warming and climate change. 10-ye...

The Environmental Protection Agency is proposing to expand its first-ever greenhouse-gas reporting requirements to include oil and gas production and ...

How do we make clean energy more affordable and available? Well, we can start by telling the oil and gas companies "no" in North Park.

DE BEQUE - Wolf advocates are celebrating the return of wolves to Colorado after biologists for a recreational ranch northwest of here recently announ...

DALLAS — An environmental group filed a petition Monday to list the Texas kangaroo rat as a federally endangered species because the sparse brus...

A demonstration called on Governor Ritter to stop clowning around when it comes to confronting global warming. Greenhouse gas emissions are actually on the rise in Colorado thanks to Xcel Energy.

DENVER — Interior Secretary Ken Salazar started on the job a year ago pledging to clean up an agency hit by scandals and assailed by critics as ...

DENVER — An environmental group wants a judge to prevent Xcel Energy from firing up a new coal-fired plant in southern Colorado until a court ca...

All the renewable energy in the world can't and won't make up for the fact that unless Colorado starts cutting back on coal burning, greenhouse gases are going to keep climbing.