Doyle McManus: The climate is still warming, but world leaders have a chance to fix that

This has been a year marked by terrifying news about climate change: extreme weather, massive wildfires, persistent drought in some areas and catastrophic flooding in others.

The sense of impending doom was made official when the United Nations' Intergovernmental Panel on Climate Change warned that the world is almost certain to blow past the target set by the 2015 Paris Agreement of holding the increase in global temperature to 1.5 degrees Celsius above the 19th-century level.

That was "a code