The countries represented by the Group of 20 Finance Ministers and Central Bank Governors—more commonly known as the G20 —generate almost 70 percent of the world’s greenhouse-gas emissions. At the end of this week, they will be meeting in St. Andrews, Scotland, to figure out ways to "rebalance" the global economy. Though carbon is not specifically on the agenda, before long it will play a leading role in determining the very global imbalances this week's meeting hopes to address.

Source: New Winners Emerging In Global Race for Low-Carbon Competitiveness