Senior Capitol Hill Democrats also applauded the ruling.
Rep. Henry Waxman (D-Calif.) seized on the portion of the decision that upheld EPA’s “endangerment finding” that greenhouse gases are a threat to human health and welfare.
The California Democrat used the ruling to criticize the GOP's efforts to nullify EPA’s climate rules.
“Today’s ruling is a message to Congress that it’s time to stop denying science. Extreme events like the wildfires in Colorado and the floods in Florida are going to get worse unless the Republican-controlled Congress changes course soon,” Waxman said in a statement.