If a tree has been cut down and there aren't any witnesses, was it really cut down? So goes the thinking behind the group of people tagging Amazon rainforest trees, who wish to stop illegal logging for good.
Implanting a microchip into the base of a tree will help determine where the wood has come from - so if it's been illegally logged and sold on, the buyers will know. Details such as the exact location where the tree was planted, the size of it, and even who cut it down will be ingrained in the microchip. [Reuters via Treehugger]
Image Credit: JorgeBrazil