As far as I can make out from today's news reports, there was no progress on border adjustments in Thursday's negotiations. They may be the only major stumbling block left. China is adamant that they must be prohibited and many constituencies in the developed countries are insisting that they be permitted. According to The Hill:
Rep. Sandy Levin (D-Mich.), a senior member of the Ways and Means Committee, issued a warning that any climate agreement must leave space for the U.S. to impose border adjustments — or “carbon tariffs” — on energy-intensive imports from countries that do not require strong emissions curbs.
“He is working to ensure that climate change negotiations will result in a global solution to this global problem and will not unfairly disadvantage U.S. industry and workers,” Levin’s office said in announcing his participation in the delegation. But such tariffs face opposition from China.