Great walls could eliminate major tornado threat in Tornado Alley, expert says
Tuesday, June 24, 2014 - 10:02
in Earth & Climate
Can we eliminate major tornadoes in Tornado Alley? Devastating tornadoes over there start from violent clashes between northbound warm wind and southbound cold wind. If engineers built three east-west great walls, 300 meters high and 50 meters wide, one in North Dakota, one passing Oklahoma and one in Texas, such barriers would weaken such air mass clashes and diminish major tornado threat, according to one expert.