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Учебник для тех магистр.docx
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1) Read a short article about greenhouse effect

The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. Since part of this re-radiation is back towards the surface, energy is transferred to the surface and the lower atmosphere. As a result, the temperature there is higher than it would be if direct heating by solar radiation were the only warming mechanism.

This mechanism is fundamentally different from that of an actual greenhouse, which works by isolating warm air inside the structure so that heat is not lost by convection.

The greenhouse effect was discovered by Joseph Fourier in 1824, first reliably experimented on by John Tyndall in 1858, and first reported quantitatively by Svante Arrhenius in 1896.

If an ideal thermally conductive blackbody was the same distance from the Sun as the Earth is, it would have a temperature of about 5.3 °C. However, since the Earth reflects about 30% (or 28%) of the incoming sunlight, the planet's effective temperature (the temperature of a blackbody that would emit the same amount of radiation) is about −18 or −19 °C, about 33°C below the actual surface temperature of about 14 °C or 15 °C. The mechanism that produces this difference between the actual surface temperature and the effective temperature is due to the atmosphere and is known as the greenhouse effect.

2) Visit the website given below to listen to the radio talk about causes and effects of climate change

http://www.learnenglish.org.uk/prof_mp3/climate-change.mp3

3) Are the following statements true or false? If the sentence is false give the correct answer.

T/F

Correct answer

1. Greenhouse Effect: The sun heats the Earth which sends energy into Space. Radiation stays in the atmosphere. It warms the atmosphere and the Earth.

2. Methane and commercial oil and gas from landfills cause damage to the Earth’s surface.

3. Burning fossil fuels has made the problem bigger.

4. The formation of new oceans could slow down global warming.

5. Global warming will cause worldwide problems simultaneously.

4) Discuss the following questions in pairs or in small groups

1. What actions should be done to reduce greenhouse effect? What do you think? Think about ways of reducing greenhouse effect as if you are a scientist / politician / environmentalist?

2. Is it possible to say that ordinary people can contribute to reduction of greenhouse effect?

3. What do you think about future of our planet and environment?

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