Climate experts not hopeful for breakthrough at COP27

Climate experts are not holding their breath for major breakthroughs in this year's annual UN climate conference. More than 45-thousand people including world leaders and our own Climate Change Minister are to descend on Sharm El Sheikh in Egypt for COP27. The meeting starts Sunday evening New Zealand time, but other significant global problems will complicate already difficult negotiations. Climate reporter Hamish Cardwell has more.