Photo of a hole in the ozone layer

South Pole’s Ozone Hole Shrinks to Smallest Since Discovery

WASHINGTON — The ozone hole near the south pole this year is the smallest since it was discovered, but it is more due to freakish Antarctic weather than efforts to cut down on pollution, NASA reported. This fall, the average hole in Earth's protective ozone...
Photo of the headquarters of the Environmental Protection Agency

California Promises Fight to Keep Auto Emission Authority

SACRAMENTO — Preparing for a lengthy legal battle with the Trump administration about how much pollution to allow from cars, California regulators on Thursday said they were considering cracking down on other emissions to make up for any impacts on air quality...