How colleges can go green on campus is a controversial issue discussed by many environmentalists. To create a green campus, college students can recycle rubbish and wastes such as paper, plastic bottles, used computers, mobile phone batteries and other used materials. Rubbish bins should be located at places where people have easy access to. Organic food could be purchased from farmers' market. Workers in canteen could also take back used cups, plates, chopsticks and other utensils. They could also use environmentally friendly detergent to clean tables. The most importantly, every student should take action to create a green campus. (100字)
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