April 29, 2011

Global warming

The topic we discussed is global warming, and we watch the video which is called six degrees could change the world two. The video stated the raise degrees from four to six. First, the ocean (sealevel) will raise, and it first impacted “Scandanavia” in which included the northern Europe such as Norway, Denmark, Sweden. Finland, Iceland, and Switzerland are also included. If it arises degrees, it will cause “dry out” and “flooding”. Flooding is like the tsunami, but so big. If the flooding came into Taiwan, our houses will inundate by flood. Furthermore, if it raises degrees, our arable land will be reduced. The lands were so dry out that we are not able to cultivate. That is, we will lose a lot of crops. Second, if it raises five degrees, the ice from snow cap will melt into glacial meltwater. We also talked about the delta which means a place where a river fans out and in where often having fertile land and high population density. We just know a little about the risk. However, how much we can’t know? If the traditional social system breaks down, what can we do…? Third, if it raises six degrees, the deserts will expand. Then, our world will become a wasteland which means a desolate place where nothing can grow and it is hard to survive. Moreover, the aquifer will dry out. An aquifer refers to the ground water, and it will disappear when the temperature is higher.

The video we looked like the “doomsday scenario”. Doom means fate, so the world doomsday means the judgment day (the end of the world). Scenario is a hypothetical situation to hypothesize what might happen in the future. Nowadays, the temperatures become more extreme. The weather is more unpredictable and it is unseasonable cool right now. For example, in 2011, it was the coldest March on record. So, what can we do to reduce the global warming? Carbon dioxide (CO2) is the main cause of increasing the global warming. Then, Chlorofluorocarbons such as gasoline, natural gas, fossil fuel, and petroleum are also the reasons. The government should put laws into effect to make people follow the rules. In addition, we should put “3R” in our mind. 3R refers to reuse, reduce, and recycle. For example, we can the water which had washed rice to flush the toilet. Another example, we can carry our own cutlery rather than use the disposable dining utensils. Moreover, it is a good way to pull plugs out of electrical sockets before we leave home. Now, there appears more and more electric car without gas. To save energy, we can protect our earth more.

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