Mark Williams

Ultimately, says Deffeyes, we may just have to resign ourselves to relying more on coal, wind, and nuclear fission for ­electricity and switching to high-efficiency diesel and hybrid automobiles in order to ration our remaining oil reserves for as long as possible. Abundant energy from fossil fuels was a one-time gift, Deffeyes concludes, that lifted humanity up from subsistence agriculture and has led to a future based on renewable resources