Under law, Pennsylvania was supposed to publish a report outlining climate change impacts on the state by Spring 2012. But the Department of Environmental Protection says it is still being reviewed, and nobody will say when it might be published.

Now NPR's StateImpact Pennsylvania has obtained documents it says shows the state's Policy Office suppressing the report because it questions the benefits of natural gas.

• "DEP Attempted To Suppress Controversial Study That Criticized Shale Gas," [2] StateImpact Pennsylvania, August 27, 2013, by Marie Cusick.