environmental problems are becoming more and more serious all over the orld. for example, cars have made the air unhealthy for people to breathe and poisonous gas is given off by factories. trees on the hills have been cut do n and aste ater is being poured continuously into rivers.furthermore, herever e go today, e can find rubbish carelessly disposed. pollution is, in fact, threatening our existence.

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the earth is our home and e have the duty to take care of it for ourselves and for our later generations. fortunately, more and more people have realized these problems. measures have been taken to cope ith these problems by the government. la s have been passed to stop pollution. i hope the problem ill be solved in the near future and our home ill become better and better.