“Few people realize the speed of change as civilization’s consumption grows but the Earth’s resources don’t. I’ve found one illustration so dramatic it makes the point painfully clear. The present total weight of vertebrate life on land and in the air can be divided into two parts: the human-related (humans and their livestock and pets) is 98%, and wild nature just 2%. If you’re keeping score, we have won – but in winning may lose a grander game.
The following two sentences summarize the situation at this wonderful moment of human life on Earth:
Over billions of years, on a unique sphere, chance has painted a thin covering of life – complex, improbable, wonderful, and fragile. Suddenly we humans (a recently arrived species no longer subject to the checks and balances inherent in nature), have grown in population, technology, and intelligence to a position of terrible power: we now wield the paintbrush.”
– Dr Paul B MacCready (1925-2007), inventor of human-powered flight, founder and former Chairman, AeroVironment Inc, in his 1999 web essay An Ambivalent Luddite at a Technological Feast
10 April 2009
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