Text 10. Ecological Problems

Since ancient times Nature has served Man, being the source of his life. For thousands of years people lived in harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man's interference in nature began to increase.

Large cities with thousands of smoky industrial enterprises appear all over the world today. The by-products of their activity pollute the air we breathe, the water we drink, the land we grow grain and vegetables on.

Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog. Vast forests are cut and burn in fire. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.

The pollution of air and the world's ocean, destruction of the ozone layer is the result of man's careless interaction with nature, a sign of the ecological crises.

The most horrible ecological disaster befell Ukraine and its people after the Chernobyl tragedy in April 1986. About 18 percent of the territory of Byelarus were also polluted with radioactive substances. A great damage has been done to the agriculture, forests and people's health. The consequences of this explosion at the atomic power-station are tragic for the Ukrainian, Byelorussian and other nations.

Environmental protection is of a universal concern. That is why serious measures to create a system of ecological security should be taken.

Some progress has been already made in this direction. As many as 159 countries — members of the UNO — have set up environmental protection agencies. Numerous conferences have been held by these agencies to discuss problems facing ecologically poor regions including the Aral Sea, the South Urals, Kuzbass, Donbass, Semipalatinsk and Chernobyl.

An international environmental research centre has been set up on Lake Baikal. The international organisation Greenpeace is also doing much to preserve the environment.

      But these are only the initial steps and they must be carried onward to protect nature, to save life on the planet not only for the sake of the present but also for the future generations.

 

 

Questions:

1. How did people live for thousands of years?
2. What cities appear all over the world today?
3. What pollutes the air we breathe?
4. What is the result of the pollution the atmosphere?
5. Why is environmental protection of a universal concern?
6. What are the initial steps in this direction?

Vocabulary:

ancient — древний
harmony — гармония
environment — окружающая среда
riches — богатства
unlimited — неограниченный
to interfere — вмешиваться
to increase — увеличиваться, возрастать
smoky — дымный
enterprises — предприятия
by-product — побочный продукт
activity — деятельность
to pollute — загрязнять
substances — вещества
oxigen — кислород
rare — редкий
destruction — разрушение
ozone — озон
layer — слой
interaction — взаимодействие
horrible — ужасный
disaster — катастрофа
to befall — пасть (на что-то)

 

           Text 11. Environmental Protection

Our planet Earth is only a tiny part of the universe, but nowadays it's the only place where we can live.

People always polluted their surroundings. But until now pollution was not such a serious problem. People lived in rural areas and did not produce such amount of polluting agents that would cause a dangerous situation in global scale.

With the development of overcrowded industrial highly developed cities, which put huge amounts of pollutants into surrounds, the problem has become more and more dangerous. Today our planet is in serious danger. Acid rains, global warming, air and water pollution, and overpopulation are the problems that threaten human lives on the Earth.

In order to understand how air pollution affects our body, we must understand exactly what this pollution is. The pollutants that harm our respiratory system are known as particulates. Particulates are the small solid particles that you can see through rays of sunlight. They are products of incomplete combustion in engines, for example: internal-combustion engines, road dust and wood smoke.

Billions of tons of coal and oil are consumed around the world every year. When these fuels are burnt, they produce smoke and other by-products, which is emitted into the atmosphere. Although wind and rain occasionally wash away the smoke, given off by power plants and automobiles, but it is not enough.. These chemical compounds undergo a series of chemical reactions in the presence of sunlight; as a result we have smog, mixture of fog and smoke. While such pollutants as particulates we can see, other harmful ones are not visible. Among the most dangerous to bur health are carbon monoxide, nitrogen oxides, sulfur dioxide and ozone or active oxygen.

If you have ever been in an enclosed parking garage or a tunnel and felt dizzy or lightheaded, then you have felt the effect of carbon monoxide (CO). This odourless, colourless, but poisonous gas is produced by the incomplete burning of fossil fuels, like gasoline or diesel fuel.

Factories emit tons of harmful chemicals. These emissions have disastrous consequences for our planet. They are the main reason for the greenhouse effect and acid rains.

Our forests are disappearing because they are cut down or burnt. If this trend continues, one day we won't have enough oxygen to breathe, we won't see a beautiful green forest at all.

The seas are in danger. They are filled with poison: industrial and nuclear wastes, chemical fertilizers and pesticides. If nothing is done about it, one day nothing will be able to live in our seas.

Every ten minutes one kind of animal, plant or insect dies out forever. If nothing is done about it, one million species that are alive today may soon become extinct.

And even greater threats are nuclear power stations. We all know how tragic the consequences of the Chernobyl disaster are.

Fortunately, it's not too late to solve these problems. We have the time, the money and even the technology to make our planet a better, cleaner and safer place. We can plant trees and create parks for endangered animals.

     We can recycle our wastes; persuade enterprises to stop polluting activities, because it is apparent that our careless use of fossil fuels and chemicals is destroying this planet. And it is now more than ever apparent that at the same time we are destroying our bodies and our future.

 

Questions:

1. When did the problem of pollution become dangerous?
2. What problems threaten human lives on the Earth?
3. Why is air pollution harmful?
4. Is it dangerous to breathe polluted air?
5. What does the burning of fuel and fossil fuels produce?
6. What are the most dangerous pollutants?
7. What is the main reason for the greenhouse effect and acid rains on our planet?
8. Can we solve the problem of environmental protection?

Vocabulary:

tiny part — крошечная часть
to pollute — загрязнять
rural area — сельский район
polluting agents — загрязняющие компоненты
global scale — глобальный масштаб
acid rains — кислотные дожди
overpopulation — перенаселение
to threaten — угрожать
to affect — воздействовать
respiratory system — дыхательная система
particulates — макрочастице
solid particles — твердые частицы
ray of sunlight — зд. солнечный свет
combustion — сжигание, сгорание
internal-combustion engine — двигатель внутреннего сгорания
wood smoke — зд. сгорание древесины
by-products — побочные продукты
power plants — силовые установки
chemical compounds — зд. химические элементы
to undergo — подвергаться воздействию
smog — смог
fog — туман
carbon monoxide — угарный газ
nitrogen oxides — окислы азота
sulfur dioxide — сернистый газ
dizzy — головокружение
odourless — без запаха
fossil fuels — органическое топливо
gasoline — бензин
to emit — испускать, выбрасывать
disastrous consequences — гибельные последствия
greenhouse effect — парниковый эффект
to breathe — дышать, вдыхать
chemical fertilizers — удобрения
pesticide — пестицид
plant — растение
insect — насекомое
extinct — исчезнуть, вымирать
to persuade enterprises — зд. убедить предпринимателей
wastes — отходы