According the NYS Department of Environment Conservation (DEC), for every one Christmas tree that is cut, one to three more seedlings are planted.
The benefit for using a real Christmas tree instead of a plastic (fake) tree is that almost all Christmas trees are grown as crops making the switch from an artificial tree to a real one an easy decision.
It takes six to seven years to grown a Christmas tree. For those years that real tree soaks up carbon dioxide, a greenhouse gas that contributes to climate change (global warming) and the chemicals to make plastic trees actually creates more greenhouse gases.
Real Christmas trees are a renewable resource. In addition most town collect used trees to be chipped and recycled for mulch, which helps reduce water usage in municipalities. Most fake trees are not biodegradable.