Exclusive: Adrian Ramsay and Ellie Chowns say party could slide into irrelevance if it chooses new leader with ‘polarising’ approach

The Green party risks going into reverse if they elect Zack Polanski as leader, his two opponents have said, arguing that his promised brand of “eco-populism” would prove polarising, divisive and likely to put off more moderate voters.

Speaking to the Guardian before the opening of the month-long leadership vote, which begins on Friday, Adrian Ramsay and Ellie Chowns said the party in England and Wales was at “a crossroads”, and could miss the chance to hold the balance of power at the next election.

“I strongly believe that most British people have had enough with populist approaches to politics that seek to simplify everything, that are all about chasing the next headline, the next set of likes, rather than real substance,” said Ramsay, who has co-led the party with Carla Denyer since 2021.

“There’s no point in just speaking to a certain section of the public that already backs you. You have to communicate in a way that has a broad appeal.”