For decades, gases from car exhaust and cow waste have drifted from Colorado’s Front Range to harm plants, fish and wildlife in Rocky Mountain National Park, and while a decades-long effort to slow the damage is working, it’s not moving as quickly as environmentalists hoped. For decades, gases from car exhaust and cow waste have drifted from Colorado’s Front Range to harm plants, fish and wildlife in Rocky Mountain National Park, and while a decades-long effort to slow the damage is working, it’s not moving as quickly as environmentalists hoped. Ecology Phys.org – latest science and technology news stories