Gemma Battenbough . Articles Architects lobby for change at Copenhagen The profession is demanding 15 actions from politicians at the United Nations conference. New tool puts suburbs in green focus A new diagnostic tool that will rate large-scale projects on their environmental, economic and social performance is today revealed. Architecture Gold Medal leads new awards set Next year's Gold Medal announcement will front a new "people-focused" awards event. BREAKING NEWS: Designs unveiled for Sydney Metro stations We can reveal three different station designs, by teams including Tim Greer, Richard Francis Jones and Keith Cottier. IMAGES: Sydney Opera House opens after refurb Changes bring the interior "in harmony" with the iconic exterior, says Jan Utzon. VIDEO: Olympic 'cloud' sparkles with light An Australian firm is part of the international team creating a digital light sculpture funded entirely by public donations.