New research indicates smoother roadways can limit the amount of carbon dioxide emitted by vehicles.
Former Obama-era official says changes to MATS rule cost analysis could neuter future environmental policies.
The Indiana Dunes National Lakeshore and the Hoosier National Forest are open to the public during the government shutdown but without any staff or services
Federal attorneys filed appeal of federal court ruling ordering EPA to ban the pesticide chlorpyrifos.
The ACE rule seeks to replace the Obama-era Clean Power Plan with less ambitious goals and enforcement.