Eco-Leninism is a type of socialism that combines Marxism–Leninism with green socialism. It retains the idea of a vanguard party and the dictatorship of the proletariat, but with an emphasis on more environmentally-friendly policies and combating climate change. Eco-Leninists believe that the climate crisis is the ultimate form of class warfare, and that only through violent socialist revolution and overthrow of the bourgeoisie can combating it even be possible.