From The Climate Institute we get the latest on which G20 countries are leading the low carbon race.

G20 CO2

The top 5 are France, Japan, China, South Korea and the UK. (note 3 Asian countries in this group). Notice that Canada, castigated for its tar sands, is 8th, just behind Germany (6th) and well ahead of Australia near the bottom in 17th place with its carbon tax.  The US ranked 11th.