WHO’s Health in the Green Economy sector briefings examine the health impacts of climate change mitigation strategies considered by the Intergovernmental Panel on Climate Change in their Fourth Assessment Report (Climate Change, 2007). Large, immediate health benefits from some climate change strategies are to be expected. Other strategies, however, may involve health risks or tradeoffs. These issues should be considered in the next round of IPCC mitigation reviews (Fifth Assessment Report [AR5]). See policy briefs on: Housing, Urban Transport, Household Energy in Developing Countries, Health-Care Facilities and Occupational Health.