The possible solution is for the world to place limits on making, buying, and selling things. Use less, buy less, travel less, mend your own clothes, grow some of your own food (if possible), be able to repair and use your device for 20 years, turn off your devices at night, use mass transit, don't use the AC, buy furniture that lasts for decades, etc.

That won't happen because of an economic collapse and no politician would ever get elected with this thinking (at least in the US). Plus, you've now taken away many freedoms that are inherit in democratic societies.

To me green technologies are better than nothing but there's really a consumption problem. And I'm completely guilty of it as well.