The head of the Environmental Protection Agency has announced a series of actions to roll back landmark environmental regulations, including rules on pollution from coal-fired power plants, climate change and electric vehicles.

In what he called the “most consequential day of deregulation in American history,” the head of the Environmental Protection Agency announced a series of actions Wednesday to roll back landmark environmental regulations, including rules on pollution from coal-fired power plants, climate change and electric vehicles.

“We are driving a dagger through the heart of climate-change religion and ushering in America’s Golden Age,’’ EPA Administrator Lee Zeldin said in an essay in The Wall Street Journal.