Professor Ross Garnaut was commissioned by all of the Governments of Australia’s Federation to examine the impacts of climate change on Australia and to recommend policy frameworks to improve the prospects of sustainable prosperity. The Garnaut Climate Change Review is one of the most important reports to be published in Australia for many years. It examines the impacts of climate change on the Australian economy, the costs of adaptation and mitigation, and the international context in which climate change is experienced and negotiated. It analyses the elements of an appropriate international policy response, and the challenges that face Australia in playing its proportionate part in that response. The Garnaut Climate Change Review is highly relevant to the global problem that is climate change. It considers what policies the international community should adopt in responding to climate change, and urges humanity to act now, and in concert, to develop the required policy response in time.