Global warming is BS. Just like the impending DOOM of the approaching ice age & global cooling was in the 70s. I was in grade school & remember the global cooling crap being burned into our brains by the school system.
[pathological liar voice] "OOPS! Global warming, that's what we meant, not global cooling. Yeah, that's the ticket. Global warming was it all along, just ignore all the "evidence" we presented before, & pay attention to what we're saying now. This is not a normal cyclical climate change like the cooling appears to have been, it's global warming. We have no hard proof, but never mind useless facts, it's global warming. Yeah, that's the ticket..."[/pathological liar voice]