Pretty much all science lies on a spectrum from, say Math on one end, thru physics and biology and eventually psychology (say) on the other. You take the view t

Pretty much all science lies on a spectrum from, say Math on one end, thru physics and biology and eventually psychology (say) on the other. You take the view that some sciences are OK and others not, but it's more nuanced. The greenhouse effect is solid physics and experimentally falsifiable and verified. We can measure fluctuations in solar output. But sure, the system as a whole is horribly complex and we can't make precise predictions. Just as a matter of common sense we know that pumping crap into the atmosphere is probably a bad thing -- we shouldn't need a rapidly impending crisis to persuade us to try to avoid doing it, but getting people to do or stop doing anything is politics, not science.