The Conservation Fund has created a nice calculator to help you understand your contributions to greenhouse gas emissions. It then lets you offset your footprint by preserving forested land as a carbon sequestration tactic.
I highlight this for two reasons. First, and most important, this is a serious issue that profoundly effects our boating environments in specific and the world in general. We all need to care about it and work for solutions. Second, maybe less important in the grand scheme but another valuable incentive, this will be a nice way of helping ensure quality lumber in the years ahead. As forests are recreated and sustainably managed, many of the areas that once supported wooden boat construction but were over-harvested should come back. The current focus seems to be on the American South and Southeast, but the model should work for other regions with other important resources.