One of the major lessons we've learned about the world around us is the lesson of inter-connectivity.
The parts of nature depend upon one another--and that includes humans--and severing connections can throw nature out of balance.
How important are trees to connecting the parts of nature? Very, say several people.
They include David George Haskell, who follows the fate of single trees in several parts of the world in The Songs of Trees. The author, a biologist and environmental studies professor, visits.
