A federal appeals court Tuesday said the Environmental Protection Agency was "unambiguously correct" in using existing federal law to limit greenhouse gases blamed for global warming.
Several industry groups -- as well as the state of Texas -- had argued that the science behind climate change was uncertain, and that the EPA lacked the legal authority to use the Clean Air Act to regulate greenhouse gas emissions from factories, power plants, and automobile tailpipes.
But the court unanimously rejected that view. "This is how science works," the judges wrote in the 82-page decision (pdf). "EPA is not required to re-prove the existence of the atom every time it approaches a scientific question."
The opinion cites not only a previous Supreme Court ruling but also Schoolhouse Rock. (“As a generation of schoolchildren knows, 'by that time, it’s very unlikely that [a bill will] become a law. It’s not easy to become a law.'")
Read the decision here.