https://www.google.com/url?rct=j&sa=t&url=http://www.theecologist.org/blogs_and_comments/commentators/2789308/use_vat_to_reward_green_refurbishment_not_demolition.html&ct=ga&cd=CAIyGmJjNGEwZWQ4N2QyMGU3Nzg6Y29tOmVuOlVT&usg=AFQjCNHBQz5SIzrUU03wPH_DFwH5asyY_A