Advocates Blast EPA Modeling Of ICE Vehicle GHG ‘Backsliding’

Environmentalists are strongly criticizing EPA modeling suggesting that combustion vehicles’ efficiency will erode under the agency’s light-duty vehicle emissions proposal, findings that are bolstering their calls to strengthen the plan, though the dynamic could also enable less ambitious electric vehicle (EV) projections in the rule. The concerns about EPA’s modeling, which surface in multiple comments to the agency from environmental and clean transportation groups, come even as automakers are arguing that such concerns about GHG “backsliding” are overblown. EPA’s modeling...