WHO Fact sheet N°266, October 2012 Concerning Climate Change and Health

Key facts Climate change affects the social and environmental determinants of health – clean air, safe drinking water, sufficient food and secure shelter. Global warming that has occurred since the 1970s caused over 140 000 excess deaths annually by the year 2004. The direct damage costs to health (i.e. excluding costs in health-determining sectors such as agriculture and water and sanitation), is estimated to be between US$ 2-4 billion/year by 2030. Many of the major killers such as diarrhoeal diseases, malnutrition, malaria and dengue are highly climate-sensitive and are expected to worsen as the climate changes. Areas with weak health infrastructure – mostly in developing countries – will be the least able to cope without assistance to prepare and respond. Reducing emissions of greenhouse gases through better transport, food and energy-use choices can result in improved health.