Agence France-Presse: When future generations write the history of humanity's faltering quest to repair Earth's climate system, 2015 will have its own chapter.
Nature, along with the usually fractious family of nations, conspired to make it a landmark year: almost certainly the hottest on record for the planet as a whole, and a rare moment of unity when 195 states pledged to curb the carbon pollution that drives global warming.
Whether the December 12 Paris Agreement is the key to our salvation or too-little-too-late...