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David Attenborough is very gloomy about much of what he's seen. What's depressed him most has been the huge speed and scale of change that human beings are inflicting on the world. People destroy everything around them. For example they cut down forests just because they need firewood to keep warm. And they don’t think about the future. When they cut down forests, the good soil have no umbrellas to protect them from the heavy rains. Water washes all good soil and in the future we will have no soil, no forests. Every year people destroy about 29,000 square miles. That is an area the size of the whole Scotland disappearing every year. Forty per cent of our drugs, our medicines, are derived from plants and most of those come from the tropical rain forests, and most of those come from the Amazon. But if nothing will be doing Amazonian jungle will disappear in just few years. Trees are a vital part of the water cycle, and of course they give us the oxygen. That means that we’ll have nothing to drink, to eat and no oxygen to breathe. Cutting down forests also causes floods. But we can’t say to these people that they mustn’t cut down that tree in order to cook their food. And it is an important problem of mankind – thinks David. But there are also other environmental problems today. Some of these problems are : the ozone holes, global warming ( or green-house effect ), acid rain … And the tragedy is that the people who suffer first are the deprived people, the people who are living on the edge of prosperity. And if they think that they are insulated from that, they are wrong. I think now a lot of people are beginning to realize that environmental problems are not somebody else’s. They make different organization, whose aim is conservation. For example " GREEN PEACE ” , " FRIEND OF THE EARTH ” and others. Everyday millions people from all over the world do everything to protect our environment , and they need for our help. I think we ought to help them , just to make our future better.
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