[ad_1] Of course, this is even more of a factor for climbers trying to summit Mt. Everest. For at the peak of that mountain, a cubic metre of air weighs only about 400 g—about a third of the sea-level figure. Not only must climbers take the time to acclimatize as they get ever higher up
[ad_1] A warming climate means millions of Americans are exposed to wildfire smoke every summer. Seattle, Wash., and the Pacific Northwest experienced some of the worst air quality in the world in 2020. Nathan Rott/NPR hide caption toggle caption Nathan Rott/NPR A warming climate means millions of Americans are exposed to wildfire smoke every summer.
[ad_1] SALT LAKE CITY — Kevin Perry had just begun his morning routine, stepping outside to get the newspaper, when he noticed something was wrong with the sky. “Within 30 seconds, I was coughing and my throat hurt,” Dr. Perry, an atmospheric scientist at the University of Utah, said of that morning in August. “It
[ad_1] SAN RAMON, Calif. & MOUNTAIN VIEW, Calif. & ATLANTA–(BUSINESS WIRE)–Chevron U.S.A. Inc., through its Chevron Products Company division (Chevron), Delta Air Lines (Delta), and Google today announced a memorandum of understanding (MOU) to track sustainable aviation fuel (SAF) test batch emissions data using cloud-based technology. Sustainable aviation fuel is produced from biofeedstocks that can