Science predicts that eventually, global warming is going to change the overall climate of the Earth. Speculation is that as carbon monoxide gases fill our atmosphere, the temperature will rise, causing the icebergs to melt. Evidence shows the icebergs are gradually melting faster. As they melt, the sea level will rise, eventually covering land we now inhabit. As the sea level rises the air will begin to cool. Over hundreds of years it is thought that the water will refreeze, causing an iceage. It is beleived that this will tremendously impact all life on Earth for the long term, including wiping out more than half of the human population. This will be due to the temperature changes, shortage of food supply, and survival of the fitest.