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.
A controversial facility that would process plastic waste to be burned in steel mills has been cancelled
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals
