In other words, some of their prophesies had already failed. I note that they couldn't come up with the same excuse as that UFO cult because 'society' didn't bend enough to their will for it to be credible. Not even Al Gore can claim with a straight face that the demons of Anthropogenic Global Warming have been banished because the guv'ment has done something about it.
Try this on a global warming enthusiast: What observations would make you lose faith in AGWT? Most likely they won’t even understand the questions. If they do, most likely they will claim strong confirmation will not be available for decades, by which time it will be too late to do anything about it.