TORONTO (AP) — Canada’s government on Tuesday approved a controversial pipeline proposal that would bring oil to the Pacific Coast for shipment to Asia, a major step in the country’s efforts to diversify its oil exports if it can overcome fierce opposition from environmental and aboriginal groups.

Approval for Enbridge’s Northern Gateway project was expected as Canada needs infrastructure in place to export its growing oil sands production. The project’s importance has only grown since the U.S. delayed a decision on TransCanada’s Keystone XL pipeline that would take oil from Alberta to the U.S. Gulf Coast.