Lee Zeldin, the head of the EPA, is set to visit Indianapolis to announce a major environmental policy change. Some say it may rollback key climate finding.

Environmental Protection Agency Administrator Lee Zeldin was at an Indianapolis truck dealership on Tuesday, announcing rollbacks that will undo efforts to combat climate change taken during

The proposal is President Trump’s most consequential step yet to derail federal climate efforts and appears to represent a shift toward outright denial of the scientific consensus.