The severe consequences of business as usual emissions with no mitigation will easily be felt within the lifespan of even the oldest Millennials and probably a great deal of Gen X. Gen Z and Millennials' children are looking at inheriting a hellscape of famine, unprecedented extreme weather, and forced migrations to escape unlivable crumbling infrastructure that has never been maintained to standards from decades ago, let alone to a level that will withstand the new conditions. Here's just one example of a single point of failure that could cause a global economic shock. There are certainly many more such shocks on the way: https://www.wunderground.com/cat6/If-Old-River-Control-Struc...