How Polluted Is Your City?
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We all know that global warming is caused by greenhouse gases, largely carbon dioxide, that is emitted by everything ranging from home appliances and SUV's to the heating and lighting systems of office buildings. But since we don't see the gas, most of us simply shake our heads in dismay and then continue on with our bad habits. Now, researchers at Arizona State University are trying to change that.
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지금 학습 시작하기댓글 137개
askinam12년 이상i did not know that
christdd12년 이상green house gases destroy the ozone layer we need to redoes them!they might kill us !!!!!!!!!!!!!!!!!!!!!!!!!!- Kay Kay12년 이상more people need to realize that it's a serious matter and not just stand by
- christdd12년 이상i know right
bigbro12년 이상This article was really interesting I can't believe global warming is actually happening! ( by the way I'm actually Ryan S! )- bigbro12년 이상This was awsome
- kkkkhhhg12년 이상its an ok artical
- Ryan $12년 이상They just told me everything I already know! I'm so smart.
- Ryan $12년 이상Once my friend was littering. I told him to stop and he kept doing it so I punched him in the face!
- Mohnish12년 이상I can't believe they can track emissions
- Mohnish12년 이상It is very weird in a sense too