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Brazil has always been rich in biodiversity. But in the country's semi-arid north-eastern region, extensive ranching, slash-and-burn agriculture, and uncontrolled demand for firewood have led to widespread environmental degradation of the Caatinga biome.

Small-scale farmers are responsible for up to 80 per cent of food production in Latin American and Caribbean countries, but they are at the frontline of the fight against climate change and social injustice.