The Canadian and Alberta governments will establish a federal-provincial working group to accelerate remediation of oil sands tailings ponds, the Alberta government said on Wednesday, as investigations continue into an ongoing tailings leak at Imperial Oil's Kearl project. Federal Environment Minister Steven Guilbeault and Alberta Environment Minister Sonya Savage met on Tuesday to discuss the incident at the 240,000 barrel-per-day Kearl mining project in northern Alberta.