Slow down to save the planet, says Japan's rock star philosopher Saito

TOKYO, Japan — As Tokyo's millions put in another day's work on the coalface of capitalism, celebrity Marxist philosopher Kohei Saito and his friends are clearing rocks from a muddy mountain stream.

Saito's core argument — that capitalism is the root cause of climate change and we need to stop chasing growth to save the planet — has struck a chord in the world's fourth-largest economy, especially among young people.