Firstly, the Green Party has elected a new leadership team, which seeks to replace Labour and take the fight to Reform, with an eco-populist platform. Rather than set them against each other, the Green Party seeks healthy interdependence of individual, nature and society. The Green Party therefore sees humanity as necessarily a dependent part of the natural environment. The central integrating principle underlying all Green Party policies is that all human activities must be indefinitely sustainable. What might it look like if the circle were squared to make populist ecosocialist politics into a realpolitic of degrowth?