text: Population pressures were and remain a genuine environmental concern, but it gradually became clear that Ehrlich and other alarmists had way overestimated the problem, and it looks very different today. (Indeed, the great social problem of the end of this century may be population that is falling too rapidly.) And while Ehrlich is still peddling the same Malthusian gloom, he never turns up on the Tonight Show any more; in fact, he doesn't even make it on Hardball or Countdown with Krazy Keith.