Trump has reversed Biden’s focus on slowing climate change to pursue what the Republican calls U.S. “energy dominance” in the global market.

He created a National Energy Dominance Council, led by Interior Secretary Doug Burgum and Energy Secretary Chris Wright, and directed it to move quickly to drive up already record-high U.S. energy production, particularly fossil fuels such as oil and natural gas, and remove regulatory barriers that may slow that down.

Trump withdrew the U.S. from the Paris climate agreement, but he has moved even more aggressively in his second term to roll back major environmental regulations, including rules on pollution from coal-fired power plants, motor vehicles and manufacturers.

Environmental Protection Agency Administrator Lee Zeldin has announced a series of actions to roll back landmark regulations, including a scientific finding that has long been the central basis for U.S. action against climate change. Zeldin’s plan would rewrite the EPA’s 2009 finding that planet-warming greenhouse gases endanger public health and welfare, the legal underpinning for a host of climate regulations.

Zeldin says the changes, including more than 30 announced on a single day last month, will drive a dagger through the heart of what he calls “climate-change religion.”

Environmentalists and climate scientists call the so-called endangerment finding a bedrock of U.S. law and that any attempt to undo it has little chance to succeed.

While Trump’s administration has blocked renewable energy sources such as offshore wind, he has tried to boost what he calls “beautiful” coal, granting nearly 70 coal-fired power plants a two-year exemption from federal requirements to reduce emissions of toxic chemicals such as mercury, arsenic and benzene.

Environmental groups and public health advocates say the plan could allow hundreds of companies to evade laws meant to protect the environment and public health.