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
- Sarah- Orange12년 이상The United States generates so much more Carbon Dioxide than other countries!
- justin12년 이상wow cool
- cahleb12년 이상crasy
- hi12년 이상yah i care
queen1212년 이상me too
- space out12년 이상people don't care about this kind of stuff. THEY SHOULD!!!!!!!!!!!!!!!!!
- Beany Baby12년 이상People are so selfish now days. If we would just stop and look at the efect that we are haveing on the Earth than it wouldnt be as polluted and it would be a lot safer too.
partyhouse12년 이상People always say that they will try to improve on the problems we have in the world right?????? But it will take probally 10 to 20 years!!!!! hope they find a faster route...- lila12년 이상thanks for this article i am using this for project exite definitely
- jaquaveon p12년 이상i learn some new thing in the atride
kanegirl8812년 이상The U.S. needs to use solar and wind energy!
first92812년 이상Make that the world!