Сократите текст для пересказа до 15 небольших предложений на английском.We know a lot of interesting things about the air, the sun, the sky, the clouds, the rain, about the rivers and oceans, seas and lakes. All these things around us are the part of our environment. Plants, animals and people need clean land, clean water and sky. But sometimes it seems that some people have forgotten how to take care of the planet we live on. They are doing harmful things to our planet, destroving trees, killing animals and polluting water. Nowadays it's easy to imagine what can happen to us, to our environment if we go on like this. The ecological harmony is disturbed. The first problem is water pollution. It is certainly true that water in lakes and rivers, seas and oceans is polluted. People dump waste into them. Oceans suffer from nucleat pollution because nuclear weapons are tested there. Factories and plants produce a lot of waste and dump it into the water. It poisons and kills everything alive there, for example fish and sea animals. Poisoned fish can then be eaten by people and sometimes can cause serious diseases. What is more, cars and buses, factories and plants pollute the air with their exhaust fumes. Nuclear power stations go wrong sometimes and cause nuclear pollution for everything alive. It is also terrible when people pollute their streets. They usually litter them with paper, cans and bottles. People make large piles of rubbish just out on the streets. Some rubbish is burned. When plastics and some other man-made things are burned, gases are given off. It is dangerous to breathe for people and animals. We know that animals and plants are in danger. A lot of species are disappearing fast. We use paper and cardboard and furniture made from wood. A lot of forests and rainforests are damaged badly. Today, many scientists and world leaders recognize that the planet is in danger. Many people belong to so-called Green organizations. The Earth is our home. The world around us is wonderful. Our aim is to make it more beautiful and to save it for next generations.