Every species has its own important role in maintaining nature’s balance. Thomas Barwick/Getty Images

Every species plays a crucial role in our natural world. But when humans tinker with the equation, a chain reaction can cause entire ecosystems to break down.

In this hour, TED speakers explain how everything is connected in nature, with some bold ideas about how we can restore the delicate balance and bring disappearing ecosystems back.

1. George Monbiot: Can “Rewilding” Restore Vanishing Ecosystems?

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2. Jane Poynter: What Lessons Came Out Of Biosphere 2?

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3. Bernie Krause: How Does Listening To Nature Teach Us About Changing Habitats?

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4. Marla Spivak: Why Are Bees Disappearing?

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