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Earth's 9 planetary boundaries

The Nine Planetary Boundaries

Mark Lynas is a journalist  climate activist, and author of The God Species: Saving the Planet in the Age of Humans. Speaking at a Long Now Foundation seminar last month, Lynas speaks of the nine planetary boundaries human society now faces as we struggle to find a path for a sustainable future. These boundaries include biodiversity loss,  biosphere and oceanic inputs of nitrogen…

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Saul Griffith: Climate Change Recalculated – Long Term Thinking on Energy and Climate

FORA.tv presentation of a talk called “Recalculating Climate Change” given by Dr. Saul Griffith at the Long Now foundation in San Francisco.