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Climate change threatens S.Africa’s rooibos tea

Agence France-Presse: Farm workers swing their sickles through red branches, bundling them up before laying them out in the sunshine to dry. The annual harvest at Groenkol Rooibos tea estate, in South Africa's Western Cape helps quench the world's growing thirst for "red bush" tea, but farmers fear that climate change could destroy the delicate eco-system that their crop depends on. Annual exports of rooibos have quadrupled in the last 13 years. The tea is popular for its perceived health benefits as well as its...