Earth

Natural resources are derived either from the air, soil, water, and organisms of the biosphere, or from the subterranean areas of the Earth. Resources of… Read More »Resources

The Earth is unique in the solar system in that, as far as we know, it is the only place that sustains life. Some people… Read More »Earth & Man

In the preparation for a long, deep space voyage, the brains of a group of astronauts were inadvertently altered. These alterations had a very unfortunate… Read More »Spaceship Earth

Since human beings transformed their lifestyles from hunter gathering to an agricultural and domesticated existence, they have searched for ways to move around other than… Read More »Transport

The Earth is our life support system, evolving over billions of years, presently providing life forms with the atmosphere and resources suitable for survival. In… Read More »Gaia

The term ‘biosphere’ is used to describe the whole sum of living things found on Earth. Usually we think of the biosphere as existing within… Read More »Ecosystems

In one form or another, energy is constantly flowing through and around us. By ‘energy’ we mean the ability to induce change (to move something… Read More »Energy is essential for all life

Sometime after the end of the last Ice Age, between 8,000 and 10,000 years ago, humans began to construct settlements and develop a livelihood that… Read More »Agriculture