@CNN: The Environmental Protection Agency has quietly signaled it may allow states to release more ozone air pollution, commonly known as smog https://t.co/5wzwRFvuJ7 https://t.co/wig7Mk8p2p

@CNN: The Environmental Protection Agency has quietly signaled it may allow states to release more ozone air pollution, commonly known as smog https://t.co/5wzwRFvuJ7 https://t.co/wig7Mk8p2p