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Filmed on Wednesday September 6, 02017
For thinking about the future of life on Earth in planetary terms, no one can match the perspective of an astrobiologist.
David Grinspoon notes two major shifts in Earth’s biological regime: 1) 2.1 billion years ago, when cyanobacteria flipped the whole planet from anaerobic to oxygen-based life; 2) now, as humans assume domination of the Earth’s living systems. “We suddenly find ourselves running a planet,” he says, “without knowing how it should be done. We’re at the controls, but we’re not in control.” The cyanobacteria were unaware of their role. We are aware of ours. What should we do about that?
Grinspoon is professor of Astrophysical and Planetary Science at the University of Colorado and Senior Scientist at the Planetary Science Institute. His books include: Earth in Human Hands: Shaping Our Planet’s Future (02016); Lonely Planets (02004); and Venus Revealed (01998).
Stewart Brand's Summary will be posted shortly.
Condensed ideas about long-term thinking summarized by Stewart Brand
(with Kevin Kelly, Alexander Rose and Paul Saffo) and a foreword by Brian Eno.
We would also like to recognize George Cowan (01920 - 02012) for being the first to sponsor this series.Would you like to be a featured Sponsor?
Seminars About Long-term Thinking is made possible through the generous support of The Long Now Membership and our Seminar Sponsors. We offer $5,000 and $15,000 annual Sponsorships, both of which entitle the sponsor and a guest to reserved seating at all Long Now seminars and special events. In addition, we invite $15,000 Sponsors to attend dinner with the speaker after each Seminar, and $5,000 Sponsors may choose to attend any four dinners during the sponsored year. For more information about donations and Seminar Sponsorship, please contact firstname.lastname@example.org. We are a public 501(c)(3) non-profit, and donations to us are always tax deductible.
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