How do we not run out of wood?

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If trees take years to grow and we use and burn so much wood, how does we not run out of wood?

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A lot of wood comes from managed parks and forests where we are constantly replanting trees to make up for the ones that we cut down. The forests / parks get mapped out into sectors, and the lumber companies rotate through those sectors.

Unfortunately sometimes lumber comes from forests where that approach isn’t applied, in which case those areas are going to run thin on trees in the future.

Logging companies plant more trees than they cut down. Trees do take years to grow but not that many. The logging areas can rotate between growing years and cutting years.

Foresters and logging companies plan ahead. The concept of planting trees now for lumber in 20, 30, 50 years isn’t particularly novel or new. We’re using lumber from trees planted decades ago, just like our ancestors used trees planted by their ancestors.

As others have pointed out, the lumber industry has a strange symbiotic relationship with trees

The old adage is that the logging companies have the best managed forests because they directly profit off big healthy trees and they lose money over diseased or rotting trees.