On a global scale, there has been an unprecedented drop in air pollution, particulates and carbon dioxide emissions from the planetary shelter in place. This is a rare opportunity for scientists who study the atmosphere to document the changes and watch for patterns that can guide policy and actions to improve our future climate and air quality.
Three million Americans have allergies to peanuts or tree nuts, but scientists are learning to desensitize the body and prevent severe reactions. Follow one patient's journey from peanut fearer to peanut conqueror.
Fall, not summer, is fire season in California. The aftermath of rainless but foggy summers and a shift in the winds that normally bring cool, moist air from the Pacific but instead blow from the dry, warm interior create the perfect recipe for fires. That weather pattern exploded this October into deadly wildfires that affected air quality all over the Bay Area.