Emma Marris



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Biodiversity: Putting a price on nature

Gretchen Daily knows the value of ecosystems — but can ascribing financial worth to them help to maintain biodiversity? Emma Marris meets an ecosystem-services evangelist.

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Conservation biology: Reflecting the past

Unsatisfied with merely halting environmental destruction, some conservationists are trying to reconstruct ecosystems of the past. Emma Marris travels back in time with the rewilders.