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How far to the next forest? A new way to measure deforestation

from The New York Times

When the Europeans first came to North America, forests were so dense and continuous that a squirrel could have traveled from the Atlantic coast to the Mississippi without ever touching the ground, some historians say. Since then, agriculture, logging, urban development and other human activities have thinned or wiped out these once-lush forests. Scientists have long tried to estimate the extent of deforestation in North America and beyond. more


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