Such seems likely to be alleged by hysterical alarmists in the press when and if they read a new study out of NASA which determined that "not all the large changes seen in Arctic climate in recent years are a result of long-term trends associated with global warming."
Of course, it's quite unlikely many climate alarmists will even hear about this study, for today's green media wouldn't want to do anything that destroys their illusion that there's a scientific consensus regarding this matter.