National Oceanic Atmospheric Administration
The Drastic Steps Irvine, California, Took to Reduce Ozone-Depleting Chemicals
The small city set a new national precedent in the fight against chlorofluorocarbons, or CFCs, which caused major danger to the atmosphere.
Smoke From Bigger, Hotter Wildfires Can Inflame Health Problems for Thousands of Miles
Wildfires may be harming the health of people who live hundreds or thousands of miles from the flames.