The revolution in subjectivity: Our definitions of human identity and human fulfillment need to change. Definitions based on how many resources you can stockpile and call your own are not sustainable as our consumption level hits ecological limits. Either we evolve in this direction or we self-destruct. See my notes on a post-technological ethics for the coming age.
The good news: We WILL evolve in this direction, just as any species drifts over time toward conditions of self-preservation.
The bad news: Will the drift reach a critical mass in time to turn things around before the tipping point? Possible, but not probable.