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Over the years I have attempted to answer that question again and again: Why do we need nature in an essential but non-utilitarian way – the way we need music or art or literature – or love? Today I’d like to give you just two of the answers I’ve come up with – knowing that, like all such answers, they are inadequate. One reason I believe we fundamentally need nature is the physical contact that nature affords. For one thing, most of the best nature writers I know have begun their life-long