Sustainable design works.
As mammoth as this sounds, nothing less will do. Any real solution must address, and transform, this cultural core. There will be no such thing as waste or pollution, only outputs from one system serving as welcome inputs to another. The basic energy used by society will be renewable solar energy, either directly or in forms such as wind, hydropower, and plants. Long-lasting, quality products will allow people to spend less time producing and consuming material goods, and more time learning, providing services, and relating to each other and to the natural world.