AAP: Governor-General Quentin Bryce has issued a rallying call for the world to act swiftly on climate change, in a sign that she intends to take an activist approach to her role. While some governors-general steer clear of hot political topics, Ms Bryce has waded into the climate change debate at a major conference on renewable energy in the Middle East. Climate change was a “huge challenge facing humanity”, Australia’s first female governor-general said on Wednesday. “We …