From the article: 
"He [Hickenlooper] said Colorado already has cut greenhouse gas emissions by thousands of tons per year and called such efforts essential to an economy increasingly dependent on a pristine natural environment. “This is our foundation. We want to keep building on it and create jobs that can’t be exported overseas.”

Yea they sure are trying to pull one over on the "sheeple" by plainly stating that we have already lowered our greenhouse gasses by thousands of tons.