A landmark climate change ruling could go up in smoke after Justice Kennedy retires

After 30 years on the Supreme Court bench, Justice Anthony Kennedy will leave the nation's highest courthouse at the end of July.
With Kennedy's departure comes much uneasiness. One cause for concern is over the paramount climate decision Massachusetts v. EPA, in which Kennedy proved to be the deciding swing vote, as he often was. The worry is that with him gone, the ruling will be left imperiled. 
The case occurred after the EPA decided, in 2003, that it could not regulate heat-trapping gr