Ice age? well as you know the CO2 levels in the atmosphere are rising swiftly caused mostly by industry, oil (petrol, gas, coal, ect) deforestation, ect. The worlds warming up and changing, the US, China, Japan and Russia make most of the population and by doing so cause many droughts, floods, storms, hurricanes, ect as well as causing the polar ice caps to melt. Put simply white reflects light and radiation back into space, water absorbs it. When the temperature raises enough the Gulf Stream will stop, the ozone gasses will become greatly weekend by the CO2 levels and stop light and radiation refracting off the atmosphere that will bounce into space instead of back at us. Because of this the temperature will fall and we may enter into another ice age. Lets hope the scientists are wrong!