President Donald Trump is expected to target the Environmental Protection Agency's Clean Power Plan, supported by former President Barack Obama, with a new executive order that could be signed as early as next week, according to a Reuters report.

The plan was announced in August 2015 and was intended to reduce carbon pollution from power plants by setting long-term emissions goals for every state. The plan was stayed on Feb. 9 by the Supreme Court pending judicial review, but Trump's order could send the plan back to the EPA, ending its legal defense, Reuters reported.

U.S. Sens. John Thune and Mike Rounds and U.S. Rep. Kristi Noem declined to comment on the order until it is signed, but all expressed criticism of the Clean Power Plan.

"I had serious concerns with the Obama administration's effort to shutter reliable and affordable coal generation," Thune said. "I strongly oppose this backdoor national energy tax and look forward to advancing a truly all-the-above energy approach."

Rounds also supports an "all of the above" approach that preserves the country's natural resources.

"In his joint address to Congress, President Trump made it clear that he will work to roll back overly burdensome regulations so that our economy can grow and prosper, which is an agenda I support," Round said.

The order is also expected to bring an end to a temporary federal coal mining ban on federal coal leases, imposed by the Obama administration in January, Reuters said.

Don Kelley, a board member for Dakota Rural Action, opposed the upcoming executive order. He said pollution from coal power plants have increased mercury contamination in South Dakota waters and have accentuated medical conditions, like asthma.

Kelley said South Dakota is already behind the curve on the adoption of solar energy, and while some utility companies have installed solar farms, making cuts to the Clean Power Plan could keep the state from catching up.

"Our state has kind of sat back and said, 'There is no rush, and there's no need to sort of help people who want to use renewable energy,' " Kelley said.

Noem said preservation of the land is important, but she believes the Clean Power Plan would increase energy costs. She said South Dakotans making $50,000 per year already spend one-fifth of their after-tax income on energy costs, double the national average.

"We all want to preserve our environment for future generations, and in a place like South Dakota, where we largely make our living off the land, that is especially true," Noem said. "But the preservation should be done through innovation, not regulation."