The southern forests, stretching from Virginia to Texas, supply 18 percent of the world's supply of Christmas trees and paper pulp.
This time of year often means Christmas trees and wrapping paper, but it may be worth giving a thought to where all those holiday trimmings come from.
At many homes right now, there's a Christmas tree and wrapping paper and a fire's going. All of those things have something in common, says Craig Hanson with the World Resources Institute. He says they are "linked directly to southern Forests."
Southern forests are the forests found from Virginia to Texas. They supply a lot of Christmas trees and paper pulp -- 18 percent of the world's supply. But they're under threat, especially from development.
"Between the [year] 1992 and the year 2040, we're gonna lose about 31 million acres of forestland in the South," Hanson says.
He says people can do their part by buying certified sustainable lumber and promoting conservation easements.