Earlier quoted context omitted.
> To say "just use less power" means going to a lower level of human development. This sounds like an assumption without obvious proof.
a barrel of oil is equivalent to around twenty-five thousand man hours of work. sacrificing that would result in a colossal hit to quality of life. and ironically, the additional people needed to mitigate that might actually result in more ecological impact, to say nothing of broadening a global underclass of widget producers we can and should use our limited hydrocarbons to bootstrap our way to higher-potential ener…
Walking is also good, and it would probably do us good to personally increase humans' basal metabolism.