The Age | Obama climate speech "unnecessary", says Trade Minister The Age Climate change a threat to the Great Barrier Reef: US President Barack Obama's University of Queensland address. Photo: Reuters. US president Barack Obama's suggestion that Australia was not doing enough to save the Great Barrier Reef was ... Andrew Robb joins chorus of Barack Obama criticism Obama climate speech 'unnecessary': Robb Andrew Robb: Obama misinformed in 'unnecessary' Great Barrier Reef speech |