Module 1A Mission Impossible The environment Rubbish rubbish We throw away millions of tons of a variety of every year This rubbish contains you empty material which we can recycle If rubbish bin the contents of a typical domestic er and you will find that about a third is pap About ing kag pac d card, especially from foo te; was d foo be a quarter of the contents will al equ t res a tenth per cent, plastic and the parts of glass, cloth and metal Recycling Many of the things we throw awa y can be recycled Recycling can reduce poll ution from certain products such as car oil and batteries It can also prolong the life of limited reserves of other natural res ources such as wood It often saves ene rgy too For example, using recycled glass, sav es energy so it is cheaper Recycling also give s jobs to hundreds of people since new industries are created So, before you throw something away next time, stop and think! Activities Answer these questions a What b What c What d What e What is Greenfreeze? is the advertisement warning us about? makes Greenfreeze different from other technologies? is destroying the ozone layer? can you to protect the ozone layer? English Toolkit - Natural Sciences Photocopiable © Ediciones Santillana S.A / Richmond 2011 In the early 1970s, scientists discovered that a type of chlorine containing industrial chemicals called halocarbons was harmful to the ozone layer The most commonly used halocarbons are chlorofluorocarbons (CFCs) CFCs are stable, non-toxic and inflammable compounds These qualities have made them very attractive for industrial use In fact, they have numerous applications Unfortunately, they are also the major contributors to the depletion of the ozone layer and consequently need to be eliminated Over the years, Greenpeace has maintained that it is possible to meet all the human needs that have been serviced by ozone depleting substances without using chemicals that affect the ozone layer or climate In 1992, Greenpeace published two extensive reports: Climbing out of the ozone hole and Making the right choices which surveyed the then existing alternatives to CFCs and other ozone depleting chemicals The development of the world’s first ozone safe technology for domestic refrigerators -Greenfreeze- was initiated, revolutionising the refrigeration industry and the market Minimum ozone levels in the Antartic have decreased steadily throughout the 1990s and less dramatic decreases have been found above other areas of the world In 2000 (and again in 2003 and 2006) the ozone hole reached a record size, extending to an area greater than that of North America Recovery of the ozone layer, however, is expected to take 50 to 100 years Damage to the ozone layer can also be caused by sulphuric acid droplets produced by volcanic eruptions Module 1A 2 Re-read the text and tick (3) the right choice d Greenfreeze harms the ozone layer .contributes to avoid ozone layer depletion e According to Greenpeace, it is possible to meet all human needs only by harming the ozone layer .without harming the ozone layer 3 Read the paragraph about rubbish again and complete this pie graph with the information provided 4 Match the words to the objects in the pictures a food waste b paper and card c glass d plastic 5 What are the advantages of recycling waste? Read the text and make a list 6 Get in pairs, look for information about products which don’t harm the ozone layer With all the information you have collected, plan a campaign to promote ozone layer protection You can use photographs or your own drawings to design a poster English Toolkit - Natural Sciences Photocopiable © Ediciones Santillana S.A / Richmond 2011 a The ozone layer’s most vulnerable period has already taken place .will take place in ten years’ time b In 1992, Greenpeace discovered that halocarbons were harmful to the ozone layer .reported existing alternatives to CFCs and other ozone depleting chemicals c Chlorofluorocarbons are toxic .non-toxic