The only possible ways of disposing of waste are to recycle it, to bury it or to incinerate it. We could recycle a much higher proportion of waste than we do at present. The amount of rubbish produced by people and by industry is increasing –a trend which is sure to continue at least in the short term .Incineration of waste on any significant scale, creates an unacceptable pollution risk ; and the same is true for rubbish burying unless we are prepared to spend millions on making landfill sites hygienically safer. Which one of the following is a conclusion which can be drawn from the above passage?