Energy and Climate Change: Creating a Sustainable Future discusses what energy is, why it is important and how why the way we use energy is having a detrimental effect on the environment. Energy is placed at the front of a discussion of geo-systems, living systems, technological development and the global environment. A central aim of the book is to develop a deeper understanding of magnitudes, for example, how output from a power station compares to a volcano. Although the book will take on the form of the traditional textbook, learning is re-enforced, and the relevance of the topic broadened, through the use of several conceptual veins running through the book. One of these is an attempt to demonstrate how systems are related to each other through energy and energy flows. Examples being wind-power, and bio-mass which are really solar power via another route; how the energy used to evaporate sea water must be related to the potential for hydropower; and where a volcanos energy really comes from. Problem solving is a central tool and is approached through the use of Fermi-like problems, where the reader is encouraged to explore relevant issues through simple numeric problem solving.