Pollution has become a serious problem in almost all the big cities of the world. City people are becoming more and more worded about how they can ________11______ pollution. They are also concemed about whether the govern- ment is doing enough to _______12_______ the environment. However, people in Ireland don" t have these worries. They are sure that they have found the13__________the problem. They use windmills. These windmills can create power without ________14________ pollution. This method is so successful that other countries are ______15________ doing the same. Why not? What works for Ireland can work for any other country?
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