Would be interesting to knowing what source you used to come up with a 40 % reduction.

Here is an excerpt of some recent article:

The latest report on greenhouse gas emissions undercuts all the enthusiastic talk from politicians about the war on global warming. Canada's Kyoto accord commitment in 2002 called for greenhouse gas emissions to be reduced to six per cent below 1990 levels by 2012.

But by 2007, emissions had actually increased 26 per cent above 1990 levels, according to a new Environment Canada report to the United Nations on emissions trends.

To meet the commitment of a six per cent reduction from the 1990 level, Canada would now have to cut emissions by 25 per cent by 2012.

That would mean taking every vehicle off the country's roads permanently and grounding all domestic airlines.

The report supports the Conservative government's argument that years of inaction meant the Kyoto commitment was impossible to meet. But it also raises questions about the Harper government's efforts. Emissions rose by four per cent between 2006 and 2007; no progress is being made on reducing carbon dioxide emissions.