Robert Zubrin quote

By enriching the carbon-dioxide content of the atmosphere from its impoverished pre-industrial levels, human beings have increased the productivity of the entire biosphere - so much so that roughly one out of every seven living things on the planet owes its existence to the marvelous improvement in nature that humans have effected.
Robert Zubrin

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The Case for Space: How the Revolution in Spaceflight Opens Up a Future of Limitless Possibility
The Case for Space: How the Revolution in Spaceflight Opens Up a Future of Limitless Possibility
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