Global warming

Today, we have national disasters all over the world such as typhoon and heavy rain. In twentieth century, we had twenty two national disasters by which we were lost over twenty billion dollars. I am not sure whether twenty dollars or not. Why did phenomenon occur? Scientists think it is global warming. It is broken out by “ green house effect “ Do you know “green house effect”? Green house effect is the effect such as greenhouse. In greenhouse, the temperature in the places rises by which covers the greenhouse.

I want to explain about “Green house effect”. Green house effect is a national effect. If it were not been for it, global average temperature -18 ℃. But recently green house effect is stronger than before. So global temperature is warmer than before. Many countries are in Europe. There are attempt for stopping global warming there. Many countries tried to do it. We have global and same problems. I think we must have cooperation and stop and global warming together.

　By the way, how do global warming rise? I will explain about it. The earth absorbs heat from sun. And the earth puts out ultraviolet rays. But the ultraviolet rays couldn’t be put out. That is because heat-trapping gas disturbed it. By it, heat is collected in the earth. So global warming rises. Do you know Heat-trapping gas? Heat-trapping gas pronounces “ ONSHITUKOUKAGASU” in Japanese. So how is trapping gas made? I will explain about it.

We use many oil by riding a car, make a cloth so on. And using oil make Carbon dioxide. It is called CO２. CO2 has a effect which absorb heat. So increasing CO2 makes Global warming. So I must make a effort to decrease CO2. I think we must consider about global warming more and more for “ future of we humans”　[311words]