The Arctic’s ozone hole

The ozone layer over the Arctic Circle developed a giant hole this winter, scientists say. Over the North Pole, 40 percent of the ozone layer has disappeared—a record seasonal loss. Ozone high in the atmosphere shields the Earth from harmful UV rays, and it fluctuates seasonally; usually about 25 percent of the Arctic’s ozone layer fades every winter. In the […]

Read more

How Pot Affects Driving

Reduced awareness Brain imaging shows that it’s harder for people who are high to focus on several things at once, such as a changing stoplight, an approaching bicycle and a car signaling a turn. Hallucinations Research is sparse, but pot-related cases can happen and are an “underappreciated” threat on the road. Slower decisions Being high can impair users’ executive function and problem-solving […]

Read more
1 388 389 390 391 392 455