The amounts of resources we consumed are like footprints. They show whose lifestyles are a burden on the earth and whose lifestyles are not. Because a few people eat up most of the earth's resources, the majority have to bear the consequences — like pollution. This is the ecological footprints that the earth keeps in its memory.
Some years ago, a famous expert, called William Rees, developed this idea of the ecological footprints. Today, this idea has become like a magnifying glass (放大镜). It allows us to see whether we are living lives in a way that keeps the earth in a reasonably good shape. Once the earth goes out of shape, there is no hope for human beings.
Countries like the United States and Canada have big ecological footprints. Rees calculated that the average amount of energy and materials consumed by a Canadian is what a land of 4.3 hectares can produce. India has a footprint of 0.4. This means that the energy and materials consumed by an Indian is what 0.4 hectares of land can produce. But if we look more carefully, we will find that even within India, the footprints of the city Indian are much larger than the rural Indian.
语篇解读:本文是一篇议论文。我们消费及浪费的能源数量就是留在地球上的脚印,脚印越多说明消费的资源越多,给地球造成的负担就越重。一旦把地球踩得变了形,那人类就没有了生存的希望。
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