Too damn expensive to build, and the Sask. Party crying boondoggle. Oh yeah, and there was a minor safety issue. If the captured CO2, which was to be stored underground, ever leaked from a pipeline:
... the heavy, odourless gas [might] collect in a deep valley pocket, for example.
"People could walk into this cloud of CO2, not realise it, and be asphyxiated by it," said Julia Race, an expert in pipeline engineering at Britain's Newcastle University.
Might be cheaper just to practice the three Rs, no?