New Zealand updates its climate targets as COP26 starts

New Zealand pledged on Sunday to reduce its net greenhouse gas emissions by 50% by 2030, toughening at the start of the United Nations COP26 climate conference its previous ambitions to limit global warming.New Zealand pledged on Sunday to reduce its net greenhouse gas emissions by 50% by 2030, toughening at the start of the United Nations COP26 climate conference its previous ambitions to limit global warming.