… These will be hard. These will be expensive.” Estebancio Castro Diaz, head of the International Alliance of Indigenous and Tribal Peoples of … change then we can’t have sustainable development.” Steve Bass, Group Head, Sustainable Markets Group, IIED: “Markets are a social … on a finite planet? This is an appeal, at the end of the day, to human ingenuity: are we clever enough to figure it out?” Julia …