What do Ben and Jerry’s, an 800,000-member South African trade union, countless college professors, a big chunk of Amazon’s Seattle workforce, and more high school students than you can imagine have in common? They’re all joining in a massive climate strike this coming Friday, September 20 — a strike that will likely register as the biggest day of climate action in the planet’s history.

More than this, what they have in common is something they share with much of the rest of humanity: a rapidly growing fear that global warming is out of…