I understand it to mean that a carbon tax would be a clear signal from the federal government that carbon capture and storage is part of the Canadian strategy. It would trigger industry to do something about carbon and leave it to industry as to how to best reduce their own greenhouse gas emissions. That's the clear signal that your group is actually looking for from the federal government. That signal hasn't yet been forthcoming, as far as I understand the new Clean Air Act.
On December 12th, 2006. See this statement in context.