Alternative energy sources like wind offer a way to lessen a country’s carbon footprint. But global warming trends could soon change the way the wind blows.
As rapid arctic warming shrinks the heat gap between the North Pole and equator, Northern Hemisphere winds could lose some oomph — up to 40 percent over the next century, depending on region.
Air traffic snarls and communication breakdowns can leave holiday flight plans up in the air. But NASA and the Federal Aviation Administration are working on a system they hope will break the logjam.
City lights drive back the night a little more each year, disrupting ecological cycles, and the switch from orange-yellow sodium lights to bluish-white LEDs might be making the problem worse.
As companies like Waymo ramp up tests of their self-driving cars in Phoenix, state and federal officials continue to debate when “good” will be “good enough.”
Now, a report from the RAND Corporation says pumping our brakes and holding out for the perfect automated car is a mistake.