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Local communities are not incentivised to protect tropical forests that are hugely valuable for global climate regulation, a new study has found. International funding could help smallholder farmers to boost yields on their existing land to incentivise long-term forest protection.

Analysis of grinding stones reveals that North African communities may have moved slowly and cautiously from hunter-gatherer lifestyles to more settled farming practices. Newly published research by Cambridge archaeologist Dr Giulio Lucarini suggests that a preference for wild crops was a strategic decision.