According to Vandana Shiva, seeds are the original renewable resource, until multinational corporations like Monsanto gain seed patents.

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Interviewer: "You talk about the fact they are enslaved by the way they are sold seeds."

Vandana Shiva: "...Patents are granted for inventions. Seed is not invented. But the only reason why you take a patent is to collect royalties. Royalites meaning cost for your seed. Royalties meaning seed that is renewable by its very nature is made non-renewable."