"I'm talking about the predictions that the Sacramento valley will flood, as I mentioned upthread, and various other doom-and-gloom predictions that clearly hav

"I'm talking about the predictions that the Sacramento valley will flood, as I mentioned upthread, and various other doom-and-gloom predictions that clearly haven't come to be." What prediction? Who said this? When? You're entire reference upthread for this is "I saw a map back in the 80s". Without knowing who drew that map and why, we can't really know what to make of it, can we? For all we know it was made as a satire of global warming predictions, or was designed by a fringe group with limited understanding of the subject matter, or you're making it up to make a point. Unless you can find an example of actual scientists (and not just one, but a group of them) predicting inundation of the Sacramento valley then you have no case for claiming 'alarmism' in that regard. And besides that, even if alarmism were an issue, that doesn't mean that there isn't a serious issue underlying it. You need to look at what the actual science predicts, not just the people who glom on to climate change as a cause célèbre, and you need to match those predictions to the outcome. The outcome of that comparison might surprise you. For an analogy, if Bob told you that eating a single milligram of arsenic were to instantly kill you, he would be wrong and would be exaggerating its real effects, but that would not mean that arsenic is somehow not poisonous or that you can ignore its poisonous effects. People can and do die of arsenic poisoning.