Reuse and recycle It’s a waste to throw used things away. Don’t throw away things made of glass, plastic and paper, but recycle them if possible. Plastic bags are hard to recycle, so reuse the old ones when you can. Take a bag with you when you go shopping. Reduce pollution Producing electricity and using oil may cause pollution of the air, water and earth in many different ways. If we use less electricity and oil, we can reduce pollution. Here is some advice: don’t leave lights on and waste electricity; walk or cycle, and don’t drive a car unless you have to. Walking and cycling are good for your health too!