There are plenty of barriers, but if we really want to we can feed the world on plant protein (largely from legumes).
Brazil has set itself a target of restoring almost 50,000 sq km of the Amazon rainforest by 2030. But it won't get there without changing its policies and how it engages with local people.
This week: Googling productivity, placing weight on calories, and changing stories.
Welcome to the future where this week we learned that milk does not need to come from cows.
A new international report makes for bleak reading on the state of the world's soils. It predicts that land degradation will displace up to 700 million people worldwide by mid-century.