Unfortunately for them, those criticism are very apt.
See: Climate turning against kooky alarmists
The latest revelation is that there's been no significant warming for 15 years. One prominent climate scientist has acknowledged the current warming period may be no hotter than the medieval warming era (800 to 1300 A.D.) when the world lived green with nary a SUV or industrial smokestack around.
The devastating Hurricane Katrina of 2005 was cited as the harbinger of killer storms to come, spawned by a warming planet. Then came this winter's record snowstorms. Now the climate alarmists lecture us that one season's weather tells us nothing about climate change.
Actually, they've gone further to claim that the cold weather mess is in fact a product of a hotter globe. Their cause has come to resemble religion more than science -- it explains everything! One British Internet site, www.numberwatch.co.uk/warmlist.htm, offers a list of articles linking global warming to a whole catalog of woes -- from the conflict in Darfur to the deadly 2007 Minneapolis I-35 bridge collapse to more potent dope from poppies to higher waves off the Pacific Northwest coast to a boom in kitten litters in Toronto to the prevalence of acne.
It is not hard to predict that we will see more commentary like this in the future.