Scarcity Of Resources | A Non-Renewable Nightmare

To design intelligent solutions, we must first examine our problems. Our first resource problem is that nonrenewable resources are scarcer than ever, and of lower quality. The principal nonrenewable resources are iron; ferro-alloy metals, used in combination with iron; nonferrous metals; precious metals, such as gold, silver, and platinum; industrial minerals, such as sulfur, asbestos, and borates; and fossil fuels. Some problems are specific to a given resource, but they have three things in common: the 3 are all distributed unevenly throughout the earth’s crust, they all cost a lot to obtain in raw form, and they are all decreasing

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GNP Best Measure of Product Production?

Much of the blame for our predicament has been heaped on our economic system and its social and political ramifications. This, however, is somewhat like blaming the car for the gasoline shortage. The origin of the problem lies, rather, in having made the attainment of ever-increasing material consumption our sole open-ended national goal. Obviously, any system or nation seeking infinitely increasing production in a finite world is bound to show, sooner or later, the unmistakable symptoms of its impending, self-destruction.

We have made economics, which reflects only a tiny wedge of the truth of the “real

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Solar Hot Water Heaters | Help your Electric Bill

Solar hot water heaters can have a huge impact on your electric bill.

Most systems are passive, meaning they transfer the heat of the sun directly to water, which is mixed into the main system.

I spent quite some time in Costa Rica, where I experienced the power of the sun first hand. All water is pumped up to a water-tower where it is stored in a big black cistern.

At certain times of the day, the water was scalding.

If you expose enough black pipes directly to sunlight, and periodically pump the heated water into

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