Here, fossil fuel resource constraints may work alongside externality pricing to make renewables more cost-competitive, yet resource availability (competing land uses) may also act as constraints for the deployment of renewables at scale. The magnitude of decarbonization required in the future affords no such gradualism. Moreover, a transition away from the energy infrastructures and institutions that have coevolved with fossil fuels over the last century carries its own costs and inertias (Unruh, 2000).