Appropriate regulation and sufficiently long time horizons can make structures of all kinds much more energy-efficient, without imposing burdensome costs. In a similar way, transportation can become less energy-intensive without restricting mobility.
有几个显而易见的步骤需要迈出。合理的监管和足够长期的视界能够让各种结构更加节能，而且不会造成重大负担。类似地，运输也可以在不影响移动性能的条件下减少能源密集程度。一些变革需要国际合作，以避免不利的现实上或感觉上的竞争性后果。