Science Never Sleep

Thursday, September 15, 2011

Review: The Day After Tomorrow [2004]

The Day After Tomorrow explores an issue on global cooling which was resulted from global warming. It shows a tremendous change in the global climate, natural disasters strike all across oceans, and the world was shifting towards a next ice age.

The phenomenon did not occur without warning. The protagonist, who is a paleoclimatologist, gave his findings that global warming has caused the polar caps to melt, leading to a decrease in the ocean temperature. The world did not believe that the weather will change for the worse. The weather progressively turned cold and people, on their way from escaping to another country, were frozen on the streets.

I feel that even though global warming has caused global temperature to rise dramatically over the last decade, it is still likely that global cooling may occur. The Earth have experienced medieval coolings for hundreds of millions of years. These coolings were also known as ice age. I think that is it is definitely possible for global warming to lead to an ice age.

When global temperature rises, the ocean temperature increases as well. With greater energy in the ocean, there will be two occurence. First, there will be greater turbulence in the ocean which will lead to stronger waves. Next, evaporation will be sped up and larger storms will gradually grew due to higher density in the air. This two occurence will lead to a higher chance of natural disasters like hurricanes and tsunamis. Natural disasters lead to a distuption of climates and affect human civilisation. Human activities are hindered by natural disasters, hence less carbon emissions will be released and the world will experience cooling during the after effects of the disasters.

After watching An Inconvenient Truth, a documentary presented by the previous vice-president of United States Al Gore, I had a lot of connections to The Day After Tomorrow. An Inconvenient Truth covers a lot on data and facts. I had learnt that it had been a constant sign that the earth experienced global warming and cooling after after the othr for the past 400 millions of years. However, in the previous decade, the global temperature rose so rapidly that it exceeded the highest temperature in the previous 400 million years. With this sort of data, I do doubt the possibility of global cooling. It may occur when human activties are greatly reduced. Human civilisation had caused Earth to be sicker than it would have been. We had to be responsible for our actions. Earth Science is the extremely important because it concerns life in the whole Earth.