The Times They're a Changin' for the Better
From the standpoint of energy and environment, remember that a mere 10 years ago, there was virtually no recognition among the public of climate change. Solar and wind were hobbies; now they’re industries. Pessimists often forget about the huge undercurrent of change for the better.
(And yes, I know that the video isn’t a real BBC production, but the idea it presents makes is precisely on point; you wouldn’t be laughing otherwise.)