Scholars examine the history and consequences of the Clear Air Act's exemption of existing industrial facilities.
Scholar argues the impact of halting the regulation's implementation may be small.
New study suggests some of the debate over environmental regulation stems from data differences.
In letter to court, states claim that a tweet proves the EPA has made up its mind.
A lower ozone standard means more benefits for Americans.
Two prominent economists introduce new questions into the debate over the social cost of carbon.
Recent Supreme Court decision misses a climate change solution that could satisfy all parties.
EPA’s authority to regulate greenhouse gas emissions is left largely intact, but agency faces rebuke.
The last years of the Obama administration will determine if the EPA succeeds in implementing a cap-and-trade regime.