Civilization has brought people many advantages but its products also pollute and damage the environment in witch we live. We have problems with pollutions of seas, oceans, pollution of air, changes in the atmosphere’s ozone layer and concentration of carbon dioxide.
Millions of years before animals lived on land, there were trees on the Earth. But today trees are in serious danger. But what is killing the trees? Nobody knows exactly, but it is probably air pollution or acid rain. Factories, power stations and cars emit tons of smoke into the air. This smoke contains sulphur dioxide and nitrogen oxide. These substances mix water vapour in the atmosphere and form sulphuric acid and nitric acid. Sunlight turns these acids into poisonous oxidants, which fall in rain or snow onto the trees. Unfortunately, acid rain doesn’t always fall on the countries, which produce the pollution. The wind carries the poisonous substances from one country to another, trees are damaged by acid rain and the forest is destroyed.
Trees are important because they provide a home for many plants and animals too. They protect the flowers, which grow on the forest floor. They provide food for insects, reptiles, birds and mammals. They protect the soil from the wind and the rain.
We must save trees, because they are most important of all for us. The forests are the lungs of the planet. Trees produce the oxygen, which we breathe. If the trees die, we will, too.
These days we produce various plastic and petroleum products made by the petrochemical industry using crude oil as a raw material or starting point. Crude oil is found in oil reserves in particular areas of the world such as the Middle East and Alaska. It is refined and made into other products in places often thousands of kilometers from where is it found. If possible it is transported overland by pipeline, but mostly it goes by sea in huge oil tankers. Unfortunately, many of these ships are a danger to the crew and to the environment. When some oil tankers are old or had been battered and weakened by storms over years at sea, they can split and the tanker leaks oil onto the sea’s surface and it is created oil spill. The oil coated the fur of sea animals or feathers of birds and many animals drowned or froze to death.
But there are many groups, which help us with environmental problems. One of these is Greenpeace. They want to save oceans, stop climate changes, protect ancient forests, stop genetic engineering, stop the danger from nuclear energy and eliminate toxic chemicals.
We must feel more responsibility for the air, water and soil; people must preserve and restore the quality of our environment. Our good relation to nature is one of our most important duties. Our possibility to live depends on the air, water and soil. We should reduce the amount of chemicals and we should develop environmentally friendly pesticides. Solution waste disposal should be controlled; waste should be re-used and recycled.
The air and water pollution is also a big danger for the Czech capital - Prague. There are many factories without modern equipment. Also the main streets and motorways are going through the city and the traffic on these streets is certainly very busy, especially during the day there are lots of cars, buses and trucks there.
We should preserve and restore the quality of our environment. We must keep our planet habitable not only for the present generation but also for the future one. It would be necessary to develop more public information and interest. It wouldn’t be right to adapt people to pollution and noise. It would be a progressive degeneration of the quality of human life.
Žádné komentáře:
Okomentovat