Climate crunch to dominate Commonwealth summit

The 2015 Commonwealth Summit kicks off on Friday to a grand opening ceremony with Queen Elizabeth, followed by intense working sessions where world leaders will grapple with climate change. As the clock ticks to a UN climate conference in Paris starting Monday, leaders including France's Francois Hollande, Britain's David Cameron and the UN's Ban Ki-moon will try to open the door to a landmark accord for taming greenhouse gases. "We look towards Paris and an agreement that will determine the sur