Arctic Oscillation
gregladen | April 15, 2013Why is it snowing so much in the Northern US States this Spring? Two words: Global Warming. Let me ‘splain.
Weather is all about air and moisture. The distribution of air is uneven, with some places having more air in big piles, other places having less air, into which the extra air from the big piles of air tends to spill. The big piles form because the surface beneath is relatively warm, causing the air to expand more than in adjoining areas. As air falls off these giant mounds of seeming nothingness, it forms low pressure systems that consist of swirling moving masses, made up of air of…