- Worldwide fertiliser shortage prompts Peru to turn to bird poo, mining guano in the islands https://www.theguardian.com/world/2022/oct/04/peru-guano-deposits-worldwide-fertiliser-shortage 32 comments technology
- Worldwide fertiliser shortage prompts Peru to turn to bird poo, mining guano in the islands https://www.theguardian.com/world/2022/oct/04/peru-guano-deposits-worldwide-fertiliser-shortage 119 comments worldnews
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