REGINA — A report is questioning claims that carbon dioxide is leaking from a vast underground storage operation in Saskatchewan.
The study from the province’s Petroleum Technology Research Centre finds no evidence to support previous research into whether the greenhouse gas was seeping to the surface.
That research suggested that some of the 16 million tonnes of carbon dioxide injected underground since 2000 at an operation near Weyburn was escaping.
It said the leakage was responsible for high levels of the gas in area soils and problems with groundwater.
It also cast doubt on the viability of carbon capture and storage, which governments and energy companies around the world are counting on to help reduce climate change.
The more recent study says that earlier research is badly flawed in its methods and interpretation.