Toronto Star: It is now an accepted fact here in Canada and around the world that our country has gone from being an environmental leader under former prime minister Brian Mulroney to a laggard under the Liberals – and now a pariah under the Stephen Harper government. The recent UN climate change conference in Copenhagen made this even more painfully clear as we were given the dubious Fossil of the Year award for the third straight time and dubbed a “corrupt petro-state.” Copenhagen …