They also took a graduate level glaciology course by a world-renounded geoscientist and learned that climate is a dynamic system, and changing one variable can move the system in an un-expected direction. In this case, it might be a concern over the flooding of artic sea water with fresh water from melting ice-caps altering density driven thermocline circulation and reducing Northern Europe's average temperature. But you knew that.

But they did say global cooling, so perhaps it is part of a great conspiracy to get the masses to worry about cooling while they prepare to profit on a warming world.

;-)