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Practice Listening: Multiple Choice, Multiple Answers ID: #3352 Medium Green house effects
Instructions
Interviewer Doctor Grant, could you explain in a few words what The Greenhouse Effect actually means?
Doctor Grant: Well, in simple terms, the sun heats the Earth’s surface and the Earth radiates energy back out into Space. Some of the radiation gets trapped in the atmosphere by greenhouse gases. This trapped radiation warms the atmosphere and some of it goes back down to the Earth, making it hotter than normal. This is the greenhouse effect.
Interviewer So, is carbon dioxide the problem?
Doctor Grant: Yes, and other gases too. Methane, being released from paddy fields, commercial oil and gas from landfills, vegetation left to rot without oxygen. These days there are more greenhouse gases than ever because of human activities and especially the burning of fossil fuels.
Interviewer: What kind of problems do scientists foresee?
Doctor Grant: Well, ice caps melting and sea levels rising mean that eventually cities like London, New York, Sydney and Tokyo.

What does the speaker say are the gases contributing to green house effect?

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