This Is Climate Change. When students David Nelles and Christian Serrer struggled to find a book that explained the nuts and bolts of climate change in a way that was comprehensive, concise and enjoyable to read, they decided to write it themselves. With meticulous research corroborated by over 100 scientists, Small Gases, Big Effect summarises all the latest findings on the causes and effects of climate change. Combining clear, thoughtful writing with illuminating graphics, it is a little book that presents complex scientific evidence in a way that everyone will find easy to understand.