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
askinam약 13년i did not know that
christdd약 13년green house gases destroy the ozone layer we need to redoes them!they might kill us !!!!!!!!!!!!!!!!!!!!!!!!!!- Kay Kay약 13년more people need to realize that it's a serious matter and not just stand by
- christdd약 13년i know right
bigbro약 13년This article was really interesting I can't believe global warming is actually happening! ( by the way I'm actually Ryan S! )- bigbro약 13년This was awsome
- kkkkhhhg약 13년its an ok artical
- Ryan $약 13년They just told me everything I already know! I'm so smart.
- Ryan $약 13년Once my friend was littering. I told him to stop and he kept doing it so I punched him in the face!
- Mohnish약 13년I can't believe they can track emissions
- Mohnish약 13년It is very weird in a sense too