75 Work with a partner. Make educated guesses about how long the following items take to decompose when left in nature. Compare your ideas in class. SPEAKING 21 Plastic planet A B C D E H G F In pairs, discuss how we should deal with the items above. Find reasons why the options below might be (un)suitable. Agree on the best way to handle each kind of waste. 22 reduce or reuse recycle incinerate dump in a landfill site The annual costs caused by marine plastics are between 6 and 19 billion USD. This calculation is based on the impact of plastic pollution on tourism, fisheries and aquaculture. It doesn’t take into account the effects on human health and the marine ecosystem. Actually, removing plastic from rivers is much more cost-effective than dealing with it in the world’s oceans. You are going to watch a video about cleaning plastic waste from the River Thames. Before watching, take a guess at the numbers mentioned in the video. 1 The clean-up takes place at 12 20 200 sites simultaneously. 2 They remove 200 20 2,500 tonnes of waste every year. 3 Last year, they picked up 201 2,050 2,500 plastic bottles. 4 This year, the count is 2,500 201 20 bottles per hour. Now watch the video. Were your guesses correct? What is the young volunteers’ main motivation for participating in the clean-up? Discuss in pairs. LISTENING + VIEWING 23 a 05 b c Nur zu Prüfzwecken – Eigentum des V rlags öbv
RkJQdWJsaXNoZXIy ODE3MDE=