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
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
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
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
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