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Foreword Paul Ehrlich 1. Energy is life 2. The great cycles 3. Ecosystem services - essential but overlooked 4. Collapse 5. Psychological and spiritual dependency on Nature 6. The great divide - anthropocentrism vs. Ecocentrism 7. Dealing with denial 8. Do we have a problem? 9. Solutions to keep our roots in the Earth
A Tue, study studied this question.