r/worldnews - Mango leaves: Indian scientists’ solution to a $2.5 trillion global shipping problem | A team of Indian scientists has developed a compound from the leaf of the mango tree that can protect ships from rusting, more efficient than synthetic paints while also being non-toxic and environment-friendly.

Pretty interesting read! I do wonder that if this method works, what would be the cost to make the compound and how many mangoes must be planted and harvested for production.

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