Mar 02 2010
If you read or listen to the news, you have probably heard about Global Warming. Records show that the earth’s temperature has been going up over a period of years. Many scientists are very concerned about what will happen if the ice melts and the sea level rises.
Now that the terrible snows have been happening on the East Coast, a lot of people have been making jokes about Global Warming because the weather there is cold and the snowfall is much heavier than normal. Other people try to explain that the issue is really Climate Change. When the climate changes, some places might be warmer, and other places might have more snow.
Most climate scientists agree that the increase in temperature and climate change has been happening faster because of human activity. There is some disagreement about what to do about it, especially in this country.
Yesterday (or today!) you read the article called Snow Melting on Mount Kilimanjaro. That article was written in 2002. The website of the National Air and Space Administration shows two pictures of Mount Kilimanjaro, one from 1993 and one seven years later. The pictures are here. You can see how much ice had melted in those seven years. (You can close the window with the pictures when you are finished looking at them.) Another article in the New York Times from November, 2009 explains that the ice cap is still retreating, and has gone down another 26% since 2000. The article and another picture is here.
Recently a huge iceberg the size of the small European country of Luxemburg, about 2550 square kilometers, broke off a shelf in Antartica when it was hit by another floating iceberg. Scientists are concerned about the impact of occurrences like these too.
Here is a video showing a piece breaking off a smaller iceberg off the coast of New Zealand: (You can get headphones and listen to it.)
What do you think? Do you think that people are causing climate change? If so, what do you think should be done about it?