(Editor’s Note: This file presents news and information from the Copenhagen climate change conference on Dec. 14, distilled from news outlet reports. Check for updates during the day.)

: As we head into the conference’s final week, The New York Times gives a quick review of what’s happened so far, what to expect over the next few days, the real issues at stake, and who are the key players.

Climate change negotiations came to a sudden halt today as a bloc of developing nations led by China withdrew in protest of what they called the Danish government’s tilt toward the interests of developing countries. : Talks have resumed, according to reports.

Mayors from around the world are holding their own climate conference in Copenhagen, based on the premise that since cities produce two-thirds of greenhouse gas emissions they should be on the front line of controlling them. : California’s Gov. Arnold Schwarzenegger will speak at the mayor’s conference tomorrow to push his theme that local government action is essential for planetary success.

CO2 is the bogeyman in Copenhagen for good reason—it accounts for half of global warming. But how about that other half? wonders The Los Angeles Times. We’re talking about methane, black carbon (soot) and other emissions that could be reined in more easily, more quickly, and at much less cost than carbon dioxide.

: For a mix of reports from environmental journalists, check out the "Copenhagen News Collaborative" reports. The collaborative comprises Mother Jones, Grist, The Nation, Treehugger, The Uptake, ForaTV, Pulitzer Center, Discover, and OnEarth.