IPCC fourth assessment report: climate change 2007 - Synthesis report (AR4)

This report is based on the assessment carried out by the three working groups of the IPCC, and provides an integrated view of climate change as the final part of the IPCC's Fourth Assessment Report. The report addresses six topics: observed changes in climate and their effects on natural and human systems; causes of the observed changes; projections of future climate change and related impacts under different scenarios; adaptation and mitigation options over the next few decades and their interactions with sustainable development; the relationship between adaptation and mitigation on a more conceptual basis and over the long-term; and the major robust findings and remaining key uncertainties in the assessment.