Steven Guilbeault Resigns From Liberal Caucus Over Climate Policy

Steven Guilbeault is resigning from the Liberal Party caucus and leaving federal politics ^[1].

The departure of the former environment minister signals a growing rift between the government's current energy strategy and the environmentalist wing of the party. Guilbeault's exit follows a policy shift toward pipeline projects that conflicts with his own environmental stance [1, 2].

Speaking in Ottawa, Guilbeault said his decision on May 27, 2026 ^[2]. He said that his tenure as a Member of Parliament lasted nearly seven years ^[1].

"After seven years, almost seven years in this wonderful, amazing, challenging place, it's time for me to move on," Guilbeault said ^[1].

Prime Minister Mark Carney thanked the former minister ahead of the expected resignation ^[2]. While some reports indicated the resignation would be effective later on May 27, 2026 ^[2], other accounts described his departure as occurring broadly within the summer of 2026 ^[1].

Guilbeault previously served as the environment minister, where he focused on aggressive climate targets. The transition toward more pipeline-centric energy policies under the Carney government created an ideological divide that eventually led to his exit from the caucus [1, 2].

His resignation leaves a vacancy in the Liberal caucus and removes a prominent environmental voice from the federal legislative process. The move highlights the tension within the government as it balances industrial energy goals, and climate commitments ^[2].