Former Canadian Environment Minister Steven Guilbeault has resigned from politics, citing fundamental disagreements with Prime Minister Mark Carney's climate policy direction. The prominent environmental activist, who served since 2019, announced his departure while leaving open the possibility of returning under different leadership. His exit highlights deepening divisions within the Liberal Party over balancing environmental commitments with economic priorities, particularly regarding energy deals with Alberta Premier Danielle Smith. La Presse+2
Guilbeault's resignation weakens Carney's majority government and exposes Liberal Party fractures. The former minister criticized Carney's energy agreements with Alberta while denying feelings of personal betrayal. His departure follows months of deliberation after leaving Cabinet in November 2025, with Environment Minister Steven MacKinnon downplaying risks of further defections. Alberta Premier Danielle Smith publicly welcomed Guilbeault's exit. National Post+2
The resignation stems from clashes over dismantling Trudeau-era climate measures, including oil pipeline approvals. Guilbeault, who attended 23 UN climate conferences, expressed frustration with policy reversals during a recent meeting with former Trudeau cabinet members at the Rideau Club. His farewell emphasized continued environmental activism outside politics, particularly regarding unfinished climate protection work. La Presse+2
While Guilbeault ruled out serving under Carney, he hasn't dismissed returning to federal politics under different leadership. His Montreal riding now faces a vacancy, removing a key progressive voice from caucus. The former minister hasn't disclosed specific future plans beyond environmental advocacy, though his resignation speech hinted at ongoing political engagement. Toronto Star+2
Environmental allies like Catherine McKenna have called for stronger climate action following Guilbeault's exit. The resignation has intensified debates about maintaining emissions targets while addressing energy sector demands. Progressives warn the Liberals risk losing climate-conscious voters without clear policy alternatives, as evidenced by shifting caucus dynamics and unexpected policy changes. National Post+2