What caused the carbon intensity drop?

FORBES: Energy-Related CO2 Emissions Take Nosedive In U.S.

Few people predicted this drop in carbon emissions.

WSJ: Rise in U.S. Gas Production Fuels Unexpected Plunge in Emissions

Mr Dion has agreed to drop his unpopular carbon tax (he now backs a cap-and-trade system for carbon emissions).

ECONOMIST: Canada: A most un-Canadian caper | The

"Since 1990 we have only seen a drop of 9% in carbon dioxide emissions, which compares badly, considering we need to achieve 80% reduction by 2050, " the party's Brian Wilson said.

BBC: NI greenhouse gas emissions fall

If all of them started to telecommute instead of drive to work, oil imports would drop by over a quarter, and carbon emissions would fall by 67m metric tonnes a year.

ECONOMIST: Tech.view

Do we better help the developing world by making drastic carbon cuts today that might in an ideal world avoid a 7% yield drop, or by making higher-yielding varieties of crops available that could potentially generate drastic yield increases?

WSJ: Bj?rn Lomborg: Global Warming and Adaptability