Increasingly, arguments about limits to growth, sustainability, development and climate change have come to stand in competitive tension with arguments for social and racial equality. Why is that case? What are the claims and underlying anxieties that polarize western societies? How do white nationalist movements relate to populist and fascist movements in the first half of the 20th century? What is new and different about them now? What is the relationship between environmentalism, rightwing populism and the climate crisis?