AIR POLLUTION: Wyo. defends haze plan that EPA rejected Amanda Peterka, E&E reporter Published: Friday, September 5, 2014 The state of Wyoming this week defended its plan to reduce visibility-limiting haze in national parks and wilderness areas. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.