You may have heard people talking about how the weather is very different today than it was ten years ago. You may have noticed changes in the weather yourself. The earth's climate has changed many times over millions of years. And you may have heard about Global Warming. You may ask what Global Warming is. I remember the first time I ever saw and heard about Global Warming when I was just a little girl. I was watching the TV and a commercial came on, it was a cartoon with two kids and an adult. They were in the park enjoying the day. The adult started talking about Global Warming, the kids didn’t know what he was talking about, so he fast forward the time and showed them what the earth is going to look like when they are his age. That tow grow up kids were arguing who over heat the car in an island surrounding by water. The island that they lived in is barren and desert. There were no trees or other animals. Their feet were burning from standing on the hot ground. They could not go into the water because the water was boiling. This was my first encounter with Global Warming. But after a while the topic got dropped and I have not heard much about Global Warming. Many people like me think Global Warming was just a joke; it was not a big deal. Until recently I watched the movie “An Inconvenient Truth”, I realized that Global Warming is still exist and it seemed getting worst. I did many researches and talked to my Biology teacher about it, I finally accepted that Global Warming is real and it is threatening our lives on Earth. As we can see that Global Warming is threatening our every day life by the increasing the earth temperature, over range hurricanes, and deadly diseases, we must take action today to stop Global Warming and save our children. .
One of the signs of Global Warming is the constantly changed weather. Global warming occurs when the levels of greenhouse gasses rise and less infrared light, or heat, escapes the earth's atmosphere. Thus, the temperature experienced on Earth begins to rise. We all know that our summer is getting hotter and longer. Over the last hundred years, the global temperatures have been increasing slowly, but steadily. Since 1980, the average global temperature has risen 0.2 degrees Celsius (0.4 degrees Fahrenheit) each decade. The most direct effects of current climate change are on temperature and precipitation patterns. As of 2006, all eight of the hottest years ever recorded were from the last 10 years. Global warming is a crisis of human perception in competition with natural cycles, which we have ignored for far too long. Scientist predict that if we continue putting the same amount of green house gases into the atmosphere, that by the year 2030 the temperature will be rising as much as 0.5 degrees or more per decade. Overall, the global temperature could rise anywhere from 5 to 9 degrees over the next fifty years. If the temperatures do rise, as predicted, several things could happen. The increase of temperature could alter the growth of crops in areas near the equator due to insufficient rain and heat. The loss of the ability to grow crops would inflict serious economic damages to unindustrialized, third world countries that rely on agriculture as a major source income. We need to sensitive to all the changes around us, and recognize the problems. With the high temperatures polar ice caps would melt and cause the sea level rise 1 to 3 feet. This would destroy small islands, coastal cities and some shallow rivers. The Florida Everglades, and costal cities, such as New York City and Miami would be destroyed. As this warming continues, established weather systems will shift and become more extreme, resulting in both more droughts and floods. As sea surface temperature rises, weather-disturbing El Niño events will become more frequent and powerful. Meanwhile, larger, more severe hurricanes, which feed on the heat of ocean waters, will threaten coasts. This trend may...
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