Despite the overwhelming benefits to humanity from the post war period of rapid economic growth (the Great Acceleration), there has also been a massive downside: ocean acidification, unsustainable water use, deforestation, degradation of wetlands, catastrophic declines in biodiversity, and global warming. Arising from this downside we’ve also experienced the Great Extinction, the Great Injustice and the Great Dissatisfaction. If humanity is to survive, now we need another ‘G’, the Great Transformation.