'Everything is at stake' as world gathers for climate talks

More than one world leader says humanity's future, even survival, hangs in the balance when international officials meet in Scotland to try to accelerate efforts to curb climate change. Temperatures, tempers and hyperbole have all ratcheted up ahead of the United Nations summit.

And the risk of failure looms large for all participants at the 26th UN Climate Change Conference, known as COP26.

Six years ago, nearly 200 countries agreed to individualized plans to fight global warming in the historic 2015 Paris climate agreement. Now leaders will converge in Glasgow for two weeks starting Sunday to take the next step dictated by that pact: Do more and do it faster.

It's not easy. Except for a slight drop because of the pandemic, carbon pollution from the burning of coal, oil and natural gas is increasing, not falling.

Between now and 2030, the world will spew up to 28 billion metric tons (31 billion U.S. tons) of greenhouse gases beyond the amount that would keep the planet at or below the most stringent limit set in Paris, the United Nations calculated this week.