Some members of Congress consistently vote against clean water, and many others are reliable champions. The senators profiled below were the biggest surprises in their vote to block protections for our nation's waterways.

Sen. Barbara Boxer (D-Calif.) questioned the Republican Party's commitment to women after Senate Republicans boycotted a vote for Gina McCarthy, the p...

. The sheer number of comments is one of the clearest signs yet that momentum is building nationwide against this pipeline. It's easy to see why: The American people know that the Keystone XL tar sands pipeline is all risk and no reward.

Transparency was a major issue on Thursday at the Senate confirmation hearing for Gina McCarthy, President Barack Obama’s choice to run the Environm...

WASHINGTON — The Obama administration will unveil a proposal Friday to clean up gasoline and automobile emissions, a step that officials say wil...

Are southern Arizonans and their elected officials supposed to trust Rosemont's promise when it has such an abysmal track record of deception and misrepresentation?

Even before liftoff, the fight against global warming has become grounded in America. Whenever a potential breakthrough appears on the horizon, either the left or the right throws a challenge to stall the solution.

The surest sign that President Obama is willing to make renewable energy a priority will be when we stop hearing about "all of the above" and start hearing about the need to set priorities and make choices.

Many iconic American corporations have invested billions of dollars and hired many of the world's best scientists to work on renewable energy breakthroughs. But these scientists are sworn to secrecy in order to protect their companies' investments.