Newsletter www.nytimes.com John J. Mooney, an inventor of the catalytic converter, dies at 90 The device he developed with a colleague in the 1970s has prevented billions of tons of carbon emissions from being spewed by cars, trucks and lawn mowers.
Causes Get off my lawn How a small group of activists (our correspondent among them) got leaf blowers banned in the nation's capital.
Greenpeace verdict over pipeline protest defamation could spell problems for environmental activism and speech
Young plaintiffs in Juliana v. United States lose Supreme Court bid but say they'll continue their pursuit of climate justice
Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?
