WASHINGTON — 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.

The Trump administration’s actions will eliminate trillions of dollars in regulatory costs and “hidden taxes,” Zeldin said, lowering the cost of living for American families and reducing prices for such essentials such as buying a car, heating your home and operating a business.

“Our actions will also reignite American manufacturing, spreading economic benefits to communities,” he wrote.

In all, Zeldin said he is rolling back 31 environmental rules, including a scientific finding that has long been the central basis for U.S. action against climate change.

Zeldin said he and President Donald Trump support rewriting the agency’s 2009 finding that planet-warming greenhouse gases endanger public health and welfare. The Obama-era determination under the Clean Air Act is the legal underpinning of a host of climate regulations for motor vehicles, power plants and other pollution sources.

In a related action, Zeldin said EPA will rewrite a rule restricting air pollution from fossil-fuel fired power plants and a separate measure restricting emissions from cars and trucks.

The EPA also will take aim at rules restricting industrial pollution of mercury and other air toxins, as well as separate rules on soot pollution and federal protections for significant areas of wetlands, Zeldin said Wednesday.