"If the Japanese can pull it together in the midst of a devastating natural disaster, then I don't know what excuse the government of Canada could have for failing to produce it on time," said Graham Saul, Executive Director of Climate Action Network Canada.

The data, which is required annually, but reports 2009 emissions, allows government officials and scientists to measure progress in reducing pollution, and whether individual countries are meeting their Kyoto Protocol targets.

The Canadian data was finally released May 18, 2011, and shows that Canada had reduced its overall emissions by 6%, resulting from plant closures due to the economic recession, and a lessened reliance on coal.

Canadian emissions, however, have grown faster than in any other G8 country that signed Kyoto, and remain 23% above our 2012 Kyoto commitment (of 6% below 1990 levels).

Emissions solely from Canada's oilsands grew by 40% between 2005 and 2009.