Moving towards a culture of "less," rather than "more," could possibly save civilization as we know it, by putting less strain on the world of Nature that ultimately has to support everything we do in our "civilized" world. If we are ever to get to less, we are going to have to stop egging ourselves on to consume ever more, which is why a group like "adbusters" may be particularly relevant.
Adbusters calls itself “a global network of culture jammers and creatives working to change the way information flows, the way corporations wield power, and the way meaning is produced in our society.”
The "Occupy Wall Street" slogan came out of adbusters.
What comes next?
We need to keep thinking (and doing) if we are ever going to change our world.