51. Choose words and phrases from the box that describe

a) the cause of global warming:

b) evidences of global warming:

c) the effect of global warming:

d) solution to the problem of global warming:

Compare your list of words and phrases with other students.

industries and motor vehicles, the change in the climate, the change in seasonal activities of organisms, carbon dioxide and other heat trapping gases, hurricanes, invasions of warm weather species into traditional cold areas, long droughts, floods, to develop less carbon-intensive energy technology, diseases spread by mosquito insects, the worldwide reduction in coral reefs, severe rainstorms, to design worldwide policies to slow down global warming , to plant trees, freezing periods, the growth of plants, delaying the flight of birds, the decrease in plant and animal populations, to take / to adopt drastic measures, disappearing of some species, to restrict / ban propellants in aerosol spray

52. Exam link. Work in pairs to discuss problems of global warming.

You should say:

What it is caused by

What are the evidences of global warming

What effect it produces

And explain how this problem could be solved.

Step 1. Active Grammar Point

Think over active Grammar which can be used in the topic.

This topic requires:

Present Simple Active / Passive

Present Continuous

Present Perfect

Present Conditional Mood

Modal Verbs should / must

Adjective Comparative Degree

Step 2. Active Vocabulary Point

Compile a list of words which can be used in the topic.

Question 1. Cause? industries and motor vehicles; carbon dioxide and other heat trapping gases		Question 3. What effect? the change in seasonal activities of organisms; invasions of warm weather species into traditional cold areas; the worldwide reduction in coral reefs; the decrease in plant and animal populations; the growth of plants; the reproduction of some reptiles and amphibians
	Global warming
Question 2. What evidences? the change in the climate; hurricanes, long droughts, floods, severe rainstorms; freezing periods; the Arctic ice		Question 4. Possible solutions? take drastic measures; develop less carbon-intensive energy technology; design the worldwide policies to slow down global warming; plant trees; restrict / ban propellants in aerosol spray

Step 3. Speaking

I suppose I should begin by highlighting the fact that global warming is caused by carbon dioxide and other heat trapping gases. In fact, industries and motor vehicles that pollute the air are responsible for the increase in temperature in the air.

Another point which I could add is that we can observe many evidences of global warming. I guess the most evident is the change in the climate. The thing with climatic changes is that we are experiencing more and fiercer hurricanes, longer droughts and more severe rainstorms and floods. As well as that, in the coldest areas of the world winter freezing periods are happening later and ending earlier. Besides, the Arctic ice is melting. On top of that I can also add that global warming has an adverse effect on endangered animals, sea life and growth of plants. Generally speaking, it has caused the change in seasonal activities of different organisms, invasions of warm weather species into traditional cold areas and the worldwide reduction in coral reefs. It has resulted in the decrease of plant and animal populations and the reproduction of some reptiles and amphibians. Sea turtles can illustrate the point. The thing with them is that their nest temperature strongly determines the sex: the coldest sites produce male offspring, while the warmer sites produce female offspring. Threatened by the climate change the nest-warming trend is reducing the number of male offspring and seriously threatens turtle populations. Also, the mentioned above melting of the Arctic ice endangers the polar bear’s habitat and existence.

In addition to what I’ve just said, I can add that there are some drastic measures which can be taken to solve the problem. The most effective way to get to the root of the problem would be the development of less carbon-intensive energy technology. Also, I suppose the government should design the worldwide policies to slow down global warming and ban propellants in aerosol spray. I shouldn’t forget to mention that planting trees could contribute to the reduction of damaging effects of global warming by using up carbon dioxide and giving up oxygen for us to breathe.