Sierra Club threatens suits over coal power plants

LOS ANGELES (Reuters) - The Sierra Club sent letters on Tuesday threatening to file suit to stop construction of eight coal-fired power plants in six states because, the environmental group claims, they violate the Clean Air Act.

"This is the first major ramification on the ground from the (Washington) D.C. circuit kicking out the Bush administration's rules in February," said Bruce Nilles, director of the Sierra Club's effort to stop coal power plants.

In February, a federal appeals court in Washington ruled that the U.S. Environmental Protection Agency violated the Clean Air Act in not setting mandatory cuts for mercury emissions of power plants.

The suits would be filed in the federal districts where the proposed power plants would be located, Nilles said. The suits would seek to require the plants to go back to state permitting agencies for new permits that meet the tougher emission standards, Nilles said.

Coal-fired power plants are the largest source of mercury emissions in the United States as well as 40 percent of U.S. carbon dioxide (CO2) emissions. CO2 is the by far the largest contributor to greenhouse gases that cause global warming.

Coal-fired power plants also are seen by most national politicians as essential because they make half the electricity used in the United States.

The Sierra Club said there are alternatives to coal power plants and that until capturing and sequestering carbon dioxide emissions is proven feasible and affordable, no more coal plants should be built.

Nilles said the Sierra Club has helped stop 63 of the 150 coal-fired power plants that were in the planning stages since 2002, including 31 last year.

"There are affordable technologies widely available today that can substantially reduce mercury and other toxic pollution," said Pat Gallagher, director of the Sierra Club's environmental law program. "In their rush to build new coal plants, developers have turned a blind eye to these technologies, and correspondingly the health of children everywhere."