A Siberian cold front has spread sub-zero temperatures across Europe, carpeting southern cities and palm-lined Mediterranean beaches with snow. ADVERTISEMENTOn Sunday, meanwhile, air temperatures at the North Pole — which won’t see the Sun until March — rose above freezing. Sometimes the vortex dramatically warms and weakens, with winds slowing down and even reversing, explained Marlene Kretschmer, a climate scientist at the Potsdam Institute for Climate Impact Research. “Overall, the global warming trend is clear,” said Kretschmer. “It is hard to say that any one event is linked to global warming,” said Kretschmer.

Source: Philippine Daily Inquirer February 27, 2018 23:48 UTC