Home Random Page


CATEGORIES:

BiologyChemistryConstructionCultureEcologyEconomyElectronicsFinanceGeographyHistoryInformaticsLawMathematicsMechanicsMedicineOtherPedagogyPhilosophyPhysicsPolicyPsychologySociologySportTourism






F) Threat of exposures at nuclear power stations

Environmental Pollution

Environmental pollution is one of the biggest problems the world faces today.

Among the most urgent problems are the ozone layer, acid rains, global warming, toxic pollution of atmosphere, disappearance of forests, contamination of underground waters by chemical elements, destruction of soil in some areas, threat to some flora and fauna representatives, etc.

A) Water pollution

One of the most important pollution problems is the oceans and rivers. The water of rivers and seas is being constantly polluted all over the world by various dangerous chemical and biological wastes. Mills and factories discharge very harmful waste waters into many rivers and sea.

B) Air pollution

Another important problem is air pollution.

Smoke pollutes the air. It is the root of air pollution. The smoke which is discharged from industries, automobiles and kitchens is the mixture poisonous gases

Cars and factories pollute the air we use. Their fumes also destroy the ozone layer which protects the Earth from the dangerous light of the Sun. Burning coal and oil leads to global warming which may bring about a change in the world’s climate.

C) Global warming is the great environmental crisis of the century

Since the industrial Age (say, 1800), the concentration of the so-called ‘greenhouse gases’ – carbon dioxide, methane and others – in the atmosphere has risen about 30 per cent. Temperature increased 1 degree Fahrenheit. These tendencies are connected. Industrial and transportation emissions increased carbon dioxide, trapping more heat in the atmosphere and raising temperatures.

Warmer weather might make some areas more attractive and others less. Because what will happen to the world is still uncertain, what will happen to a particular region is even more uncertain. We don’t know how to prevent warming. Further pollution of the environment can go as far as to cause the complete melting of the polar ice caps, which would flood many coastal areas around the world.

D) Deforestation

The other problem is Deforestation. Our forests are dying from acid rains and destruction. Deforestation, especially destruction of tropical forests, affects the balance of nature in many ways. It kills animals, changes the climate and ecosystem in the world.

E) Soil pollution

Reckless application of chemical fertilizers, insecticides and pesticides pollutes the soil. Vegetables and fruits are quite injurious today, because they contain the poison of insecticides and pesticides.

f) Threat of exposures at nuclear power stations

The growths of industries, cities increase the needs in energy. A number of nuclear power stations have been built in many countries. Though they are considered to be safety but in fact they may cause dangerous situations.

The nuclear accident at Chernobyl, which took place on April 26, 1986 and in Japan in 2011, has seriously aggravated the ecological situation on the planet. These catastrophes can be considered as the largest disasters of the mankind. As the result of the Chernobyl accident 18% of territories of Ukraine and Belarus republics were contaminated by radioactive elements. The agriculture of the countries suffered great losses. More than 20% of the population has also suffered.




Date: 2016-03-03; view: 700


<== previous page | next page ==>
Answer the questions | Islam in Moroccan society
doclecture.net - lectures - 2014-2022 year. Copyright infringement or personal data (0.001 sec.)