...between Harper and Iggy on Carbon Trading:
Ignatieff called for a common cap-and-trade system to be negotiated with the United States that would set a hard cap on emissions and define specific reduction targets.
Since the idea of a national carbon tax is dead, the only game in town is C&T. And the only halfway effective version of C&T calls for the setting of hard (rather than soft or intensity-based) caps. This statement a) places Iggy a bit left of Harper, who is still hemming and hawing over hard and soft caps and, b) moves him towards a popular, progressive American President.
Not an earth shattering bit of political positioning. Significant nevertheless.