THE HOT--SNOWBALL EFFECT?More people in our overpopulated world use more fossil fuels and produce more greenhouse gases?These gases warm the air and increase water vapor?This heats the air even more since water vapor is a greenhouse gas-Less arable land-More famines-More forest fires-More violent storms as upper air cools-releasing the water vapor as rain and snow-Oceans warm and become more acidic-reducing shellfish-Permafrost thaws releasing more...