Proposed Colorado Rule Calls for Mitigating Climate Effects of Road Projects

Under a draft rule proposed by Colorado's Department of Transportation, "state and local governments would need to consider, measure and potentially offset the climate-warming effects of transportation projects," reports Nathaniel Minor. "If the total emissions do not fit within a set budget, the releases would have to be offset through cleaner projects like new transit service, bicycle and pedestrian infrastructure, and local zoning decisions that result in more density."

In response, "[t]wo environmental groups cautiously lauded the proposed rule and said it comes at a crucial time for the state transportation agency." But the rule "could cause some friction between local governments that want certain projects built and the state, which would be in the position of enforcing the emissions budgets." Some critics worry that delaying road expansion projects "just keeps more cars on the road," but research consistently suggests that expanded roads encourage more drivers to use them.

"The state Transportation Commission will consider public comments on the proposed rule through Oct. 15 before voting at its November meeting."