Warming Arctic linked to polar vortex outbreaks farther south
Warmer air weakens the vortex, which normally keeps cold air trapped in Arctic, letting it go south Warming of the
Read moreWarmer air weakens the vortex, which normally keeps cold air trapped in Arctic, letting it go south Warming of the
Read moreA group of Native American protestors went to the offices of SAExploration in Houston, Texas Monday to object to work
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