According to the Conservatives, Mr. Dion's plane is estimated to burn more fuel and generate more smog-causing pollution -- and about 2,500 more tonnes of greenhouse-gas emissions per hour -- than Stephen Harper's plane. As a result, the Conservatives said Mr. Harper would not be taking measures to erase his global-warming footprint from the campaign.
Substitute China and India for Dion, and you see the lame justifications.
It's not Dion, or the Liberals, it's the NDP, it's the Bloc, it's the Greens. It's about demonstrating that you take emissions seriously, that you are aware of your behavior, it's about setting an EXAMPLE Mr. Prime Minister. The Conservatives know everyone is engaging, which makes their choice to play odd man out, all the more confusing, considering they actually argue they are credible.
The Liberals may be hesitant in highlighting this glaring example, because it draws attention to that plane, not exactly a wanted reminder. However, it really is the perfect, practical example of the FRAUD that is being presented. It's a big, naked middle finger to the environment.