* California and Ontario, Canada are powerhouse economies

* Many details still to be sorted out

SAN FRANCISCO, March 11 (Reuters) – As U.S. prospects for a national climate change bill fade, five U.S. states and Canadian provinces are on track to start a cap-and-trade market for carbon dioxide in 2012, say officials who see fading federal momentum boosting regional efforts.

Continue Reading at Reuters

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5. Opinion: Carbon Trading May Have Hit Brick Wall

Tags: Carbon Dioxide, Carbon Price, Carbon Trading