State of the World 2008 - Ideas and Opportunities for Sustainable Economies

- A Worldwatch Institute Report on progress toward a sustainable society

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The Impact of Climate Change

- Investigates the influence the human race have on our planet's environment

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When Life Nearly Died - The Greatest Mass Extinction of All Time

- A geological detective story about a little known catastrophe that wiped out 90% of life 251 million years ago

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