Quotes from Kenneth S. Deffeyes

The economists all think that if you show up at the cashier's cage with enough currency, God will put more oil in ground.

Of course, the methods for human population control are enormously controversial. One contraceptive measure seems to be humane and acceptable: If you teach calculus to teenage girls, they go on to have far fewer babies. Calculus is the contraceptive of the future. It doesn't work for boys.

Once supply begins to dwindle, the years to follow will see shortages that at best will cause global recession, possibly worse than the 1930s Great Depression, ... war, famine, pestilence and death.