Stupid argument, Tom
There was certainty based on lack of info before... lots of stupid things have been advocated. The fact is global warming, as it stands now, is not one of those things... and you know it. If I go back 60-70 years I can probably find articles disproving manned space travel as a possibility. The thing is we learned more and learned it is possible. Tom, the science of global warming is sound. It is our government that is trying to silence the facts, not the scientists.