George Kenney over at Electric Politics has quite the interview with Al Bartlett. Here's a link to the .mp3 download, and here's a link to the post itself, which has an in-line player and comments. George writes:

It's an enormous conceit to think that population increases are everywhere and always a good thing. In the blessed tradition, however, of neo-classical economic theory (aka 'free markets') such is the miracle of rational choice that left to themselves people will 'optimize' the rate of population growth: no natural limit on population exists. Nevertheless, in reality the unacknowledged costs of population growth mostly shift to future generations. Call it the ultimate Ponzi scheme. And if you think about it, population growth is the main driver of all our planetary scale problems, from warming to Peak Oil to food production, right down the list. Locally as well, even to diluted democratic practices of governance. Although it makes no sense whatsoever to tackle any of these without due consideration of the population factor most of the time population doesn't get mentioned — the implications are so politically controversial. To help put population and its derivatives into perspective I turned to a man who's been sounding the alarm about sustainability for decades, Dr. Albert Allen Bartlett. It was a real privilege to talk with Al, who's as close to being a prophet as anybody can be these days. Listen, and pass the word! Total runtime an hour and sixteen minutes.

Amen, brother. (Feel free to link to other recent peak oil media in the comments as well.)

This is a guest post by GliderGuider. It is also available on the author's own website.

Throughout history, the expansion of human population has been supported by a steady growth in our use of high-quality exosomatic energy. The operation of our present industrial civilization is wholly dependent on access to a very large amount of energy of various types. If the availability of this energy were to decline significantly it could have serious repercussions for civilization and the human population it supports.

This paper constructs production models for the various energy sources we use and projects their likely supply evolution out to the year 2100. The full energy picture that emerges is then translated into a population model based on an estimate of changing average per-capita energy consumption over the century. Finally, the impact of ecological damage is added to the model to arrive at a final population estimate.

This model, known as the "World Energy and Population" model, or WEAP, suggests that the world's population will decline significantly over the course of the century.

This is a guest post by GliderGuider.

At the root of all the converging crises of the World Problematique is the issue of human overpopulation. Each of the global problems we face today is the result of too many people using too much of our planet's finite, non-renewable resources and filling its waste repositories of land, water and air to overflowing. The true danger posed by our exploding population is not our absolute numbers but the inability of our environment to cope with so many of us doing what we do.

It is becoming clearer every day, as crises like global warming, water, soil and food depletion, biodiversity loss and the degradation of our oceans constantly worsen, that the human situation is not sustainable. Bringing about a sustainable balance between ourselves and the planet we depend on will require us, in very short order, to reduce our population, our level of activity, or both. One of the questions that comes up repeatedly in discussions of population is, "What level of human population is sustainable?" In this article I will give my analysis of that question, and offer a look at the human road map from our current situation to that level.

As I have mentioned elsewhere, the concepts of ecological science are the most effective tools for understanding this situation. The crucial concepts are sustainability, carrying capacity and overshoot. Considered together these can give us some clue as to what the true sustainable population of the earth might be, as well as the trajectory between our current numbers and the point of sustainability.