Global warming is arguably the most critical and controversial issue facing the world in the twenty-first century, one that will affect every living creature on the planet. It is also an extraordinarily complex problem, which everyone needs to understand as clearly and completely as possible. This Very Short Introduction provides a concise and accessible explanation of the key aspects of global warming. Mark Maslin discusses how and why changes are occurring, sets current warming trends in the context of past climate change, examines the predicted impact of global warming, as well as the political controversies of recent years and the many proposed solutions. Fully updated for 2008, this compelling account offers the best current scientific understanding of global warming, describing recent developments in US policy and the UK Climate Change Bill, where we now stand with the Kyoto Protocol, and the latest findings of the Intergovernmental Panel on Climate Change. Maslin also includes a chapter on local solutions, reflecting the now widely held view that, to mitigate any impending disaster, governments as well as individuals must to act together.