GLOBAL WARMING AND HUMAN HEALTH
Climate warming may increase human health problems. Mosquitoes and other disease vectors could expand north. Scientists predict an increase of 50 million to 80 million cases of malaria, plus more cases of cholera and other diseases.

Global warming may be detrimental to agriculture. Rising sea levels would flood some of the best agricultural lands. Agricultural pests would increase. Both floods and droughts may increase. All these factors would cause the greatest loss of productivity in Central America and Southeast Asia.

To deal with global warming, the international community agrees it must stabilize CO₂ emissions. One hundred and sixty countries decided on a timetable to reduce GH gases, called the Kyoto Protocol, but by 2001 only 33 countries had ratified the treaty (the United States has not ratified it).