Currently, the European Commission intends to increase the EU’s 2030 climate target. Instead of a 40 percent target, greenhouse gas emissions would be reduced by 50 to 55 percent compared to 1990 levels; the European Parliament is even considering a 65-percent reduction. The European Emissions...

Linking of two or more cap-and-trade systems promises gains in cost effectiveness and signals a strong commitment to carbon policy. Linking is also seen as one possible way of converging from regional climate policy initiatives toward a global climate policy architecture. Moreover, linking may...