It's easy to see why so many apparently deny the science, EXXON, Kosh Brothers, etc, spent untold millions on subversive propaganda campaigns - and only had to sell an idea that people already wanted to buy - that we don't have to change our lifestyles or reduce our impact on the physical world, we don't need to feel guilty because our actions don't really have consequences.

Even if we do collectively accept this, few are going to elect politicians whose manifesto is banning gas guzzling automobiles, or rationing red meat, etc and corporations are only motivated by short-term profit. I don't eat meat, it's the least I can do, but most people I meet won't change because 'it's tasty'.

In the States, the science of climate change became politicized, and like everything else, polarized. This has been disastrous really, with any concern for the planet being reduced to 'lefty crap' and anti-business.

Lastly, our media is owned and tightly ran by a small minority whose interests are very much in continuing the status quo, apparently at really any cost - plain old hubris or something more sinister?

To answer the OP, I think with climate change, resource wars and the serious knock on effects that will all have, ending RTW moto travel will be the least of our problems. Just the other day I read that globally we've got sixty years of arable top soil left. Sixty years! But as usual Al Qaeda 2.0 were dominating the hysterical media.