Discover magazine has an interesting mini-article about the processes of geologic reformation based on natural activities and human activities. Geomorphologist Roger Hooke of the University of Maine estimates that people shift up to 45,000 tons of earths dry surface each year! Over the last 5,000 years we have moved the equivalent of a mountain rainge 13,000 feet high and 60 miles long!!!
We really don't live in harmony with nature--do we?
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