I'm skeptical about planetary warming. I'm not skeptical about any other number of environmental impacts.
There's more CO2 in the atmosphere today than there was hundreds of years ago. That means there's more infrared radiation, which means more heat.
People are self interested creatures, and that extends to scientists, "intellectuals", and politicians. It makes perfect sense for Joe Six Pack to notice that almost none of the standard environmental moralizers are "practicing what they preach", and that "solutions" put forward are nearly always politically/economically targeted in such a way so as to not hurt those in power. If things were really so serious, wouldn't the people claiming it is serious be acting differently? This is the thought process. Now, it could be incorrect - the self interest of those moralizers and those with hands on levers of power may simply also be seeking to achieve change while offloading any ill-effects - thus not really changing much of anything substantial in environmental terms, while wreaking havoc on Joe Six Pack and family.
This kind of leads into a bit of criticism on your blogpost about the relationship between MARs ("Middle American Radicals") and "intellectuals". I don't know what "intellectual" means. It has become another term effectively synonymous with "they". Something that your observations overlook regarding the antagonism between the MARs and what I will specify as beltway elites/Ivy Leaguers, is that MARs rightfully recognize that to even say that those Ivy Leaguers et al don't have their "best interests at heart" would be a massive understatement. There is a mutual disdain, and it now approaches a fever pitch because of a combination of forces putting extreme pressure on MARs - forces created by policies championed by those elites and Ivy Leaguers. The economics of Empire involves siphoning wealth from the hinterlands to the Capitol(s), and for the United States, the hinterlands includes the South practically from coast to coast, as well as the northern middle. Which is where most Trump support is. Although Trump is extremely "big city", he talks like them (and I mean in the way that he talks, not the words themselves)when he says the things they want to here . He presents himself believably as someone on their side. There is a reason Cruz failed most miserably in trying to capture the "anti-establishment" anger: He's 100% establishment (Ivy League? Check. Lawyer/Politician? Check), and nothing about his career or how he presents himself suggested otherwise. MARs are no longer interested in platitudes and fuzzy ideas which prove to be a cover for the politician to fuck them over once in office. There's a chance Trump might still fuck them over, but everyone else was a sure bet.
By "intellectuals" I didn't necessarily mean Ivy-Leaguers. Cruz is an Ivy-League man, as you point out, and he's far from intellectual. Someone like Friedrich Hayek, on the other hand, is an intellectual. I consider it something having less to do with credentials and more to do with the complexity of thought reflected in one's speech or writings.
I disagree on your comment about intellectuals not having in mind the best interests of those you're calling the MARs. If we're talking about something like, say, global warming, then they most certainly have
everyone's best interests in mind. It might not look that way, however, to a MARs who cannot perceive the effects of global warming outside his living room window (and who is told by people like Cruz that it's all a myth).
You're absolutely right that scientists are individuals and therefore self-interested. But it is absolutely possible for someone who's self-interested to still publish findings without warping them to fit a political agenda. In the sciences, studies on global warming have been carried out across the institutional field, meaning they've been confirmed by the big wigs as well as the small-timers. This is evidence that stacks up to more than political agendas.
I agree that Cruz lost in part because he couldn't speak in the vernacular of common sense - he speaks like a politician, rhetorically polished. But he also lost because he represented a version of firebrand fundamentalism that, while many of those who support Trump might sympathize, or even
say they identify, with, it's beyond their immediate concerns as far as the current presidential race goes. Trump can fumble through Bible verses like an idiot, and that's good enough for them.
This is the really sad thing. People want a president basically as dumb as they are (to put it in crude terms). I want a president smarter than I am. This time around, I don't think I'll get that at all. But I firmly believe I got it when Obama was elected (personal opinion).