>stopping the changes we’re already causing

That ship sailed when the industrial revolution started. We - as a planet - industrialised, and the cost is a change in climate. Billions of people are catching up with what Europe kickstarted, and nothing's going to change that.

The equilibrium is going to be thinking about how the future world may look, and adapting our terrain and lifestyles to match it. The Sahara is the perfect test bed for this.