U.K.'s Johnson warns world leaders as climate summit begins

British Prime Minister Boris Johnson has opened a global climate summit, saying the world is strapped to a 'doomsday device.' Johnson likened the Earth's position to that of fictional secret agent James Bond -- strapped to a bomb that will destroy the planet and trying to work out how to defuse it.

Johnson likened an ever-warming Earth's position to that of fictional secret agent James Bond -- strapped to a bomb that will destroy the planet and trying to work out how to defuse it.

He told leaders that "we are in roughly the same position" -- only now the "ticking doomsday device" is not fiction. The threat is climate change, triggered by the burning of coal, oil and natural gas, and he pointed out that it all started in Glasgow with James Watt's steam engine powered by coal.

He was kicking off the world leaders' summit portion of a U.N. climate conference, which is aimed at getting agreement to curb carbon emissions fast enough to keep global warming to 1.5 degrees Celsius (2.7 degrees Fahrenheit) below pre-industrial levels. The world has already warmed 1.1 degrees Celsius (2 degrees Fahrenheit). Current projections based on planned emissions cuts over the next decade are for it to hit 2.7C (4.9F) by the year 2100.

Johnson told the summit that humanity had run down the clock when it comes to climate change, and the time for action is now. He pointed out that the more than 130 world leaders who gathered had an average age of over 60, while the generations most harmed by climate change aren't yet born.