Developing countries use more local energy sources. 50% of the world's population use very little oil, gas or electricity.

Energy is found in many different forms. Sources are considered preferably if they are renewable.

Renewable energy resources do not:

• Cause acid rain

• Add to the greenhouse effect

• Deplete world resource forever!

The disadvantages of many renewable sources are that they can be difficult to exploit and are only suitable for electricity generation.They are also not without their own impact on the environment.

Globally there is a very low level of renewable energy production. Hydro-electric is the most significant and produces 6% of the world's primary energy and 20% of the world's electricity.

The World of Renewable Energy