Why is this even being considered? Rivers used to be so polluted that they caught fire! In large cities, smog used to hang in the air so thick that it impared visibility.! This is the UNITED States of America. If clean environment isn't the same priority in all 50 states, then big businesses WILL pollute freely in states where they operate. This new president of ours ran on the platform of "making America great again". How is taking away environmental protections making us great?!