摘要:The health and well-being of human populations – and the very existence of low-lying island states – depend on an ambitious outcome at the 21st Conference of the Parties to the United Nations Framework Convention on Climate Change, (Paris, 30 November to 11 December 2015). Unless the world dramatically reduces emissions of greenhouse gases, especially carbon dioxide from burning of fossil fuels, it is estimated that global average temperature will increase by 2.6–4.8 °C and sea level will rise by up to a metre around the end of this century.1 These changes would have major health impacts.