The world is facing an energy crisis. As the finite supply of fossil fuels such as coal, gas and oil upon which we depend dwindle - indeed, some scientists predict that oil could run out within the next 45 years - humanity must look to renewable sources of energy to generate power. But how efficient and sustainable are alternative energy sources such as wind, wave and solar power? And is it safe to continue using nuclear power? Can we as individuals make a difference? This book looks at our current use of energy and at what the future is likely to hold. The information comes from a variety of sources, including government reports and statistics, newspapers and magazine articles, surveys and polls, academic research and literature from charities and lobby groups; articles have been tailored to an 11 to 14 age group. Additionally, at the end of each chapter are two pages of activities relating to the articles and issues raised in that chapter.