Provides a thought-provoking and original approach to the science of climate. Emphasizes that there are many factors contributing to the causation of climate change. Clarifies that while anthropogenic generation of carbon dioxide is important it is only one of several human activities contributing to climate change. Considers climate change responses needed to be undertaken by politicians and society at national and global levels. Totally revised and updated with state of the art satellite data and climate models currently in operation around the globe.