Lasers might not be the first things that come to mind when thinking of the conserving the environment. Nonetheless, they're being used to manage commercial forests more efficiently.
The false-color image above was captured with a "laser radar" LIDAR (light detection and ranging) system from Irish company Treemetrics. The colors are a 2D representation of 3D data that reveals how dense and straight the trees are. This allows plantation managers to understand how many logs can be harvested from any given tree, and what their quality will be.