1. The number of people on the Earth is growing fast.
People and the planet
The number of people on the Earth is growing fast.
Photo acknowledgement:
Yann Arthus-Bertrand/Corbis UK Ltd
© Oxford University Press 2008

2. People and the planet
We are not spread evenly around the Earth. Some places are very crowded, and some are quite empty.
© Oxford University Press 2008

3. People and the planet
The more of us there are, the more resources we use: land, water, fuel, and so on.
© Oxford University Press 2008

4. In fact we are competing with each other for resources.
People and the planet
In fact we are competing with each other for resources.
© Oxford University Press 2008

5. People and the planet
We are competing with other living things too: both plants and animals. The more of us there are, the less room for them.
© Oxford University Press 2008