Canadian Prime Minister Justin Trudeau on Wednesday made major changes to his Cabinet, making several ministerial appointments in a bid to help stave off increasing unhappiness in the energy-producing west.

Trudeau's Liberals lost their majority in an October election and now face a potential national unity crisis.

They have no legislators in the western oil-rich provinces of Alberta and Saskatchewan, where anger is growing over tough environmental protection laws that critics say could cripple the energy industry.