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We're trying to reduce our carbon footprint by using our bikes more and The car less. empezar lección
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We need to take climate change more seriously, or our world is going to become a very different place. empezar lección
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If we don't do something about global warming, some Islandia are going to disappear under the sea. empezar lección
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the greenhouse effect means our planets is becoming warmer than it should be. empezar lección
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Although we can't see it, the ozone layer protects us from dangerous UV radiation. empezar lección
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we need to rely more on renewable energy like solar panels to generate electricity. empezar lección
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Governments are now more concerned about sustainable development, but they still don't do enough to control Economist growth. empezar lección
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there is a lot of industry there and The River and sea are polluted with toxic waste. empezar lección
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require, demand This situation calls for immediate action. empezar lección
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make a tree, etc. fall by cutting it We decided to chop down the old oak tree in the garden. empezar lección
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make a place completly clean and tidy Why don't you clean up your room before your friends arrive? empezar lección
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become less common and then disappear Does anyone know why the dinousaurs died out? empezar lección
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get rid of They've done away with the traffic lights outside the school. empezar lección
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if sth runs out, you don't have any more of it One day, all the world's oil supply will run out. What will we do then? empezar lección
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get rid of sht you no longer want Do you mind if I throw away all these old magazines? empezar lección
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destroy completely Wolves were wiped out in Britain centuries ago empezar lección
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Were you affected by the recent foolds? empezar lección
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Young childern shouldn't be expose to cigarette smoke. empezar lección
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Building another airport will be very harmful to the local environment. empezar lección
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Elephants need to be protected from local hunter. empezar lección
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The local wildlife is threatened by pollution from factories. empezar lección
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Trying to expalin something to Harry is a waste of time because he never listens. empezar lección
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