【明報專訊】THE plastic revolution has revolutionised human lives. But it has also brought about the problem of pollution. According to a latest study conducted internationally, the water people drink every day contains microplastic invisible to the naked eye. Microplastic pollution has become a new environmental topic in recent years, with more and more people concerned that microplastic can enter the food chain — and then the human body — and potentially harm human health. The impact of microplastic on the environment, ecology and the human race, like that of global warming, might not be clear until many years later. That, however, does not mean that we can pay little regard to the problem and sit on the sidelines before scientists reach a consensus or conclusion. The SAR government should investigate the situation in Hong Kong as soon as possible. It should also learn from the experience of other countries and consider banning products containing microplastic through legislation.