That site also says that we are consuming resources 25% faster than they are being produced. That set my BS detector off instantly, because if that were the case there would be huge increases in the price of raw materials. Now, some materials have certainly gone up in price recently, but others are near all-time lows.
Studies of the ‘carrying capacity’ of the earth are all over the map. One on extreme end, some environmentalists claim the true number is under a billion people. Others say the number is in the hundreds of billions.
Those worst-case estimates generally also assume that we’ll get no better at knowing how to use our resources, that we won’t find alternatives when some resources become too expensive, that our values and lifestyles won’t change to accomodate new economic realities, etc. In other words, they pull the number out of their ass by assuming the worst of everything and the best of nothing, and by ignoring many known sources of energy and materials to propagate the alarmist message they want to deliver.
That sounds like a really lousy economics book. People aren’t poor today because they are resource poor. They are poor because their economies are arranged poorly, because they aren’t allowed to innovate, to build businesses, and to have rights to their own property. Or they are ensnarled in taxes and regulations, and hounded by corruption. Resource availability has nothing to do with it. The rich countries didn’t just grab up all the resources and refuse to share. They mined or created resources, and anyone else can do the same.
It’s certainly true that some specific resources will become more scarce in years to come. But at the same time, other new resources come into play that didn’t even exist before. Plastics replace steel. Carbon fiber and composites replace plastic. Telecommuting replaces travel. Information and flexible assembly lines reduce the need to ship goods around the world.
Today in the west, we use about half of the oil per dollar of GDP generated than we did 25 years ago. This is due to effiiency gains across industries and societal change. That trend will continue. For example, entertainment for wealthy people used to be a high-energy affair. People went out to movies, to drive-ins, they went for Sunday drives, they bought boats and RVs. Today, people are more likely to stay in the house and watch the big screen, or sit in front of their computers or video game consoles.
When energy and raw materials get more expensive, the world will adapt - and still get wealthier.
The average world income is around $8,000. The average 3rd world income is 1/10 of that. The average 1st world income is around $16,000, if I recall correctly. Bringing the 3rd world up to 1st world standards does not require mansions - only the top 1% in the first world live in mansions anyway. But even if the 3rd world got to a standard of living where everyone had a decent apartment or small home, an internet connection, a satellite dish, access to basic health care, and a supply of healthy meals, you could say that the entire world is ‘rich’ from a human comfort and satisfaction standpoint. And that does not require massive amounts of physical resources or energy.
What’s needed is economic freedom, political stability, property rights, and education (education will follow if the other conditions are met).