Father Harold Naylor is one of the founders of the Conservancy Association, a green group that celebrated its 30th anniversary yesterday. An active pastoral priest, the 67-year-old Dubliner came to Hong Kong in 1960 and has since worked as a Form 4 English and biology teacher. He lives at Wah Yan College in Yau Ma Tei, where he has taught since 1967. What's on your mind? It is the 30th anniversary of the association, and the environment in Hong Kong has changed a lot since we started out. When we began the group, we wanted to clean up the place as there were a lot of people spitting in the streets and there was also some dumping in the New Territories. These days I'm more concerned that urbanisation will creep into our country parks. What else are we going to do to re-house another few million people in another few years? They'll also have to further fill in the sea, which will lead to more environmental problems. Have Hong Kong people become more environmentally aware during this time? Yes, 30 years ago it was basically a hand to mouth existence in Hong Kong. I have been encouraged by all the environmental legislation being passed recently, but cleaning up the place is all down to political will, of which we need a lot more. What are the biggest problems? Well, just look at the red tide. People are pointing the finger at phosphates and nitrates, and where does all this come from? Sewage and waste is just being dumped into the waters. What else can be done apart from tougher enforcement of environmental law? The government departments are not exchanging enough information on environmental issues. We are now part of China and part of its environment, sharing its air, water, agriculture, wildlife and marine life. We have a lot of information to share and it is only in the past few years that people on both sides of the border have been getting together. As a priest, I believe nature is God's creation and we are its stewards - we are a part of it. We do not want to cut off our own nose.