Sequestration of CO2 from North Dakota at the oil plant of EnCana company in Weyburn, Saskatchewan. CO2 sequestration (from North Dakota) at the oil plant of EnCana company in Weyburn, Saskatchewan (pipe, valve, oil pump, compressor building). Fire escaping from a chimney (very little smoke). Keywords: GREENHOUSE EFFECT,NATURAL GAS,NATUAL GAS REFINERY,SASKATCHEWAN