Itchy & scratchy

"Creeping vines are increasingly invading Southern forests, choking out trees and altering forest makeups.
Scientists say increased levels of carbon dioxide might be to blame.
... A survey of two forests in South Carolina over the past two decades has revealed that vines such as grapevines, trumpet vine, poison ivy and Virginia creeper have been infiltrating the areas at increasingly higher rates, especially in newer woodlands." Continued.

Canon EOS 30D & EF-S 17-55 f/2.8 IS lens