News tagged with winter

Polar vortex: The science behind the cold

The polar vortex, a swirl of low-pressure air six miles up in the atmosphere, blasted much of the American Midwest and Northeast in late January 2019 with temperatures cold enough to bring on frostbite within minutes.

dateFeb 06, 2019 in Earth Sciences
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Toiling in Delhi's toxic smog

Delhi is the world's most polluted major city, its toxic cocktail of vehicle fumes, dust and smoke choking the chaotic metropolis and taking years off its 20 million inhabitants' lives.

dateJan 31, 2019 in Environment
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