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A: Did you hear that by the year 2100 some small island nations may be under water? B: I know. The problem of golbal warming is becoming very serious
A: Wow, you look like you've been working hard. Why are you sweating so much? B: Well, I started biking to work instead of driving to cut down on greenhouse gases.
A: Do you realize how much carbon monoxide the average car emits? B: I know. That's why I hope those zero emission cars are on the market soon.
A: Why did they choose the name "fossil fuels" for coal, oil, and gas? B: Because they come from the remains of dinosaurs and other long dead animals. Also, if we keep using them, the human race will meet the same fate of those animals.
A: I wonder how we are going to be able to feed everyone in the future. B: Me, too. And I just read that a lot of America's "bread basket" is vulnerable to desertification |