In March, Mr. Harper visited Thailand, South Korea and Japan. Thailand is reportedly moving towards a cap-and-trade system. Japan has now introduced a carbon tax, while Tokyo has had a cap-and-trade system for the past year. South Korea passed cap-and-trade legislation in May.
In February, Mr. Harper visited China, which is now experimenting with a carbon market.
In January, Mr. Harper delivered a speech in Switzerland, which has both a carbon tax and a trading system.
(In September, Mr. Harper visited Russia, which is maybe (?) thinking about cap-and-trade.)