Malaria affects millions of people every year.
A group of British scientists and U.S. researchers warned that climate change could bring a significant increase in cases of malaria around the world, as well as the spread of the disease to mountainous areas of Africa and South America.
The study, published in the journal Science, says that even a small increase in temperature in the future could result in millions of cases of disease.
The researchers found evidence that mosquitoes that transmit the disease are moved to higher ground as the temperature rises.
People living in high altitude areas lack adequate immune system, which would facilitate the spread of the disease.
About 250 million people are affected by malaria.