OK, the first point here is that if we provided a genuine education in the scientific method, enough people would understand peer review and data revision in the light of new information that these arguments wouldn't fly. But, regrettably, we don't. Even the students who manage to graduate with the ability to read and write stand a sporting chance of not understanding the concepts that drive scientific investigation, or the idea that it's possible to correct errors.
But the paragraph that really caught my eye summarized the opinions of one Marc Morano of the site Climate Depot, a leading climate change skeptic:
Rather he believes that “lack of warming in recent years” has helped his cause—although this decade is the hottest in recorded history, there hasn’t been a record-breaking year in 10 years. Moreover, recent papers suggest that natural climate fluctuations might continue to mask the expected warming trend for up to three decades.You can boil a living frog to death if you start him out in a pan of cold water and raise the temperature very gradually. Are we sitting in a pan of water? How hot is it, anyway?