RESOURCES INDEX | HOMEPAGE | CONTENTS | PDF | HELP | BACK | NEXT
 
Download the PDF version

How Can Renewable Energy Reduce Global Warming?

Introduction

Renewable energy is energy created by sources that are not used up or depleted. Most forms of renewable energy do not produce carbon dioxide and other harmful gases. Using more renewable energy sources would reduce carbon dioxide emissions and minimise global warming.


Hydroelectric Power

Hydroelectric power (HEP) uses the force of moving water to create electricity. However, HEP stations often require large dams, which disrupt ecosystems and displace people. HEP is the most widely used renewable source, providing 20% of the world's energy.

A hydroelectric dam


Solar Power

The Sun provides the main source of energy for all living things. Solar energy is free and will never run out. We can use solar panels to turn the Sun's energy into useful energy.


Wind Power

Wind turbines harness the movement of air to produce energy. They are often found grouped together in wind farms.

A windfarm


Biomass

This is the term used to describe plant materials and animal waste, which can be burnt for energy.


Geothermal Energy

Geothermal energy is energy that is generated by using the heat beneath the Earth's surface.