The year is 2050, world population has reached 10 billion and the vast majority of people live in cities. The biosphere – for decades under catastrophic pressure – experienced a turn of fortune in 2030, when the sustainable development goals were declared a success. Climate change was halted below 2 degrees. Ecosystem restoration and protection secured degrading ecosystem services and coastlines. Investments in agriculture created resilient supply chains, and financial innovations placed resources in the hands of local communities. The tide was turned.