David grinspoon earth in human hands

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david grinspoon earth in human hands

Earth in Human Hands: Shaping Our Planets Future by David Grinspoon

For the first time in Earths history, our planet is experiencing a confluence of rapidly accelerating changes prompted by one species: humans. Climate change is only the most visible of the modifications weve made—up until this point, inadvertently—to the planet. And our current behavior threatens not only our own future but that of countless other creatures. By comparing Earths story to those of other planets, astrobiologist David Grinspoon shows what a strange and novel development it is for a species to evolve to build machines, and ultimately, global societies with world-shaping influence.

Without minimizing the challenges of the next century, Grinspoon suggests that our present moment is not only one of peril, but also great potential, especially when viewed from a 10,000-year perspective. Our species has surmounted the threat of extinction before, thanks to our innate ingenuity and ability to adapt, and theres every reason to believe we can do so again.

Our challenge now is to awaken to our role as a force of planetary change, and to grow into this task. We must become graceful planetary engineers, conscious shapers of our environment and caretakers of Earths biosphere. This is a perspective that begs us to ask not just what future do we want to avoid, but what do we seek to build? What kind of world do we want? Are humans the worst thing or the best thing to ever happen to our planet? Today we stand at a pivotal juncture, and the answer will depend on the choices we make.
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We are unique in our capacity for self-reinvention - David Grinspoon

Format: HardcoverVerified Purchase. Earth in Human Hands, written by astrobiologist Dr. David Grinspoon, examines our current issues of global warming and.
David Grinspoon

Earth in Human Hands, with David Grinspoon

With an OverDrive account, you can save your favorite libraries for at-a-glance information about availability. Find out more about OverDrive accounts. David Grinspoon is an astrobiologist, award-winning science communicator, and prize-winning author. In he was appointed the inaugural chair of astrobiology at the Library of Congress. He is a frequent advisor to NASA on space exploration

Yet, without minimizing the challenges of the next century, David Grinspoon suggests that our present moment is not only one of peril, but also great potential, especially when viewed from a 10,year perspective.
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Earth in Human Hands: A Cosmic View of Our Planet’s Past, Present and Future

A composite image of the western hemisphere of Earth. Throughout the history of Earth, there have been an incredible number of critical moments that determined what direction our planet would take next. Just a few tens of millions of years after the Solar System first formed, a catastrophic collision with a Mars-sized planet wreaked havoc on the entire planet, and created the Moon from its debris. Two billion years later, life almost went extinct as anaerobic organisms, producing oxygen as a waste product, almost poisoned the planet and caused it to freeze over entirely. And every few hundred million years or so, a mass extinction wipes out about half the species living on the globe, including 65 million years ago, with a massive asteroid causing the demise of the dinosaurs. A comet or asteroid that struck Earth because it wasn't detected quickly enough is one of humanity's greatest natural threats, and could potentially be even worse than the extinction event of 65 million years ago.

Members get a snapshot view of new Long Now content with easy access to all their member benefits. Published monthly, the member newsletter gives in-depth and behind the scenes updates on Long Now's projects. His research focuses on: climate evolution on Earth-like planets; potential conditions for life elsewhere in the universe; and planetary-scale human influences on the Earth system. For thinking about the future of life on Earth in planetary terms, no one can match the perspective of an astrobiologist. We are aware of ours. What should we do about that?

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