One thing sadly missing from your optimistic scenario can be summed up in three words: runaway feedback loops. These mean that our predicament is already beyond our control even if, magically, we could get the power brokers of the world to abandon their short-term greed. Global heating is already accelerating, yet our entire global industrial/consumer civilization is entirely dependent on ample supplies of cheap net energy—that is, fossil fuels. So collectively, we’re doomed. Individually, we can only grow gardens, grow community, and grow awareness, as we prepare as best we can for the imminent collapse of all the infrastructures that have sustained our cancerous civilization since the Industrial Revolution.