Scientists tell us that the evidence the Earth is warming is “unequivocal.” Increases in global average air and sea temperature, ice melting and rising global sea levels all help us understand and prepare for the coming challenges. In addition to these observed changes, climate-sensitive impacts on human health are occurring today. They are attacking the pillars of public health. And they are providing a glimpse of the challenges public health will have to confront on a large scale, WHO Director-General Dr Margaret Chan warned today on the occasion of World Health Day.
http://www.who.int/mediacentre/news/releases/2008/pr11/en/index.html