From calls to curtail greenhouse gases to assertions climate change is an invention to justify regulation, GOP hopefuls span spectrum

Koch fights tougher government rules despite continuing terrorist threat to chemical plants

From denying climate change to stances against EPA and Supreme Court, Perry resists Washington and helped a billionaire donor.

In safety demo, Halliburton worker swigs fracking fluid - a sign of industry assurance. Little stands in way of natural gas extraction boom.

As first recommendations emerge, scientists seek ouster of a former CIA director on energy company boards

IMPACT: Democrats help GOP pass coal ash bill out of committee

EPA aims to drop anti-pollution gear on gasoline pumps in 2013

Stimulus home energy funds spent on shoddy workmanship, consulting, lobbying

GAO says the Pentagon isn't making progress on its sexual assault responsibility

IMPACT: Witness MIA at House hearing on Solyndra loan guarantee