Some scientists are worried that human health is at risk from some effects of climate change.
1. Our winters are now not cold enough to kill off nasty germs and bacteria, which means they multiply and cause more of a problem.
2. Mosquitoes carrying the disease malaria used only to be found in hot Tropical countries; now they are spreading further northwards because the warmer climate suits them. There are fears that they could soon reach Britain.
3. There are more heat-related deaths and cases of heatstroke and dehydration in Europe every year.