IBTopic08


 * **Topic 8: Energy, power and climate change** ||
 * 8.1 || Energy degradation and power generation ||
 * 8.2 || World energy sources ||
 * 8.3 || Fossil fuel power production ||
 * 8.4 || Non-fossil fuel power production ||
 * 8.5 || Greenhouse effect ||
 * 8.6 || Global warming ||