Pulling down a housing estate will twist moral values of the young, say union and Friends of the Earth Enraged environmentalists say they will complain to the ombudsman over the government's 'serious error' in allowing the demolition of the Hunghom Peninsula estate. Friends of the Earth director Mei Ng Fong Siu-mei pledged this action yesterday before meeting the developers who plan to pull down the former subsidised housing estate to make way for luxury flats. 'This incident shows that the government has gone out of control,' Ms Ng said. 'It has committed a serious error in letting developers demolish the buildings.' The environmental group has already nominated developers Sun Hung Kai Properties and New World Development for the 'irresponsible corporate behaviour award' issued by Swiss-based group Public Eye on Davos, and has applied to have the demolition listed in the Guinness World Records. Democrat legislator Cheung Man-kwong, who is also president of the Professional Teachers Union, said he would call for Secretary for Housing, Planning and Lands Michael Suen Ming-yeung to step down. Mr Cheung said he would make the demand when fellow Democrat James To Kun-sun moved a motion condemning the government's handling of the project. No date has been set for the motion. 'I think ... Michael Suen bears the most responsibility,' he said. The Professional Teachers Union and Friends of the Earth said the demolition would twist the moral and educational values of future generations. 'We've spent decades to build up a sense of no-waste in the public mind,' said the green group's assistant director Edwin Lau Che-feng. 'But now it's all destroyed.' Mr Cheung said the decision had shown how greedy and reckless the developers were and showed disrespect for the Earth by turning new materials into waste. He and the green group both hoped that the decision could still be overturned. 'I don't know how to stop the demolition by legal action,' Mr Cheung said. 'But I hope our request would be upheld by social justice.' The environmentalists poured scorn on efforts by the developers to make the demolition 'green'. 'They are not only deceiving us, they are deceiving themselves,' Ms Ng said. 'No matter what green method they use, the demolition is already a big waste.' Both groups will refuse to join the Hunghom Peninsula Concern Group, that the developers are setting up to allow the public to monitor the demolition, saying it was 'a public-relations trick'. 'The demolition is wrong in the first place,' Ms Ng said. 'So we won't participate in this kind of immoral activity.' Mr Cheung said: 'It's the most humiliating negative teaching material ever. We might not be able to stop the demolition, though we'll try our best. But we can turn this into something with educational value.' He said a drawing competition would be held on Sunday for children to capture the images of the Hunghom Peninsula. The green group and the union also invited all families to take part in a walkathon on December 12, that will feature checkpoints reminding people of the demolition's impact and take participants past the residential estate. Friends of the Earth said the walkathon was a non-violent protest and the groups would develop teaching kits for schools to discuss the demolition with their students.