Scientists further explore the fact that carbon drawdown is boosted by life and examine the grasslands where the largest number of animals exist. From the tropical savannahs of East Africa to the tundra of the Arctic, from the plains of Kazakhstan to the prairies of North America. Heroic champions of nature and the latest science reveal how important grasslands are to the future, and what can be done to restore them to health and abundance. 

Expanding on the scenario of a world where nature is thriving, ecosystems are functioning, and carbon is stable, is there room for 11 billion people? Scientists reveal how humans are the ultimate ecosystem engineers - a keystone species - more than capable of looking after the planet. See stories where people are changing things for the better, integrating our modern lives with nature, and showing a path to a better future. From the metropolises of China to the outskirts of Los Angeles, from the bogs of Ireland to the Favelas of Rio. Humans can make this world one where we can all thrive!