b1179ab0-d73d-4034-865d-21b3d8c33753With nasty cold fronts thrusting an icy and early winter across the continental U.S. — along with last winter described by USA Today as “one of the snowiest, coldest, most miserable on record” — climatologist John L. Casey thinks the weather pattern is here to stay for decades to come. In fact, Casey, a former space shuttle engineer and NASA consultant, is out with the  provocative book “Dark Winter: How the Sun Is Causing a 30-Year Cold Spell,” which warns that a radical shift in global climate is underway, and that Al Gore and other environmentalists have it completely wrong.  More