What is the climate action plan at Paris conference COP21?

There is unanimous recognition of the threat.US has offered a 26-28% cut in green house gas emissions from 2005 levels by 2025,EU promises 40% cut by 2030,China says it will taper off after 2030,India has promised to lower emission by 33-35% of GDP from 2005 levels in 2030.Focus of conference will be on transparent reporting. Costs must be globally distributed will be insisted upon in Paris.