Thursday, 31 January 2019

Polar vortex: What is it and how does it happen?

The deep freeze gripping much of the US has been blamed on a polar vortex. Here's what that means.

from BBC News - Home https://bbc.in/2Sex5LW

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Internet Shutdowns Hit Parts of Afghanistan Amid Talk of a Crackdown

By Taimoor Shah and Elian Peltier from NYT World https://ift.tt/y0SedWn