Green Party Leader – Zack Polanski and His Background

The Green Party of England and Wales entered a new chapter in September 2025 with the election of Zack Polanski as its leader. A former deputy leader and current London Assembly member, Polanski brings a combative, “eco-populist” style to the role. The following overview examines his identity, background, policies, and the broader leadership structure of the Green movement in the UK.

Polanski’s ascent marks a shift in tone for the party. Known for his direct communication style, he has promised to tie environmental action directly to economic justice and the rising cost of living. This piece covers the key facts about the current leader, the history of those who