By the middle of the century, our planet will need to feed almost 10 billion people, according to the UN. To do this sustainably and limit global heating to 1.5C, the world must also reforest on a huge scale, say scientists, while increasing food production without converting more rainforest and wetland into farmland.
It is an intractable challenge. With vast areas of forest, grasslands and savannah already lost to expanding agricultural frontiers and resource extraction in the last century, the competition for space, dubbed “the land squeeze” by the World Resources Institute (WRI), will put unprecedented pressure on Earth’s planetary boundaries.
