Climate change is responsible for 2.4 per cent of all cases of diarrhoea worldwide and for 2 per cent of all cases of malaria, according to the most recent figures available. Moreover, an estimated 150,000 deaths and 5.5 million Disability-Adjusted Life Years were caused in the year 2000 due to climate change. The World Health Organisation (WHO) and partners are launching a major new study of the health impacts of climate change. The study examines, for example, how weather, air pollution, and water and food contamination affect the way diseases emerge. It further suggests effective means for all countries to monitor and control the health effects of climate change.