To tell the truth, with the emails that were revealed in climategate pretty much revealing a scientific fraud that started after the warming stopped (entirely natural, solar caused), about 15 years ago, I think of these guys as shysters. Now we are being warned by the top Russian solar scientist in charge of the Russian segment of the International Space Station, that a 200 year "Little Ice Age" is starting about the year 2014. He bases the prediction on a 200 year magnetic output cycle of the sun. The same year roughly is targeted by the "renowned Croatian physicist" and Ice Age expert, Professor Vladimir Paar. The cycles included in his study involve the really long ones, 70,000 years of glaciation, onset by 2014 give or take a bit.