Some suggest that planting more trees to offset carbon dioxide emissions is an easy way to combat global warming. But according to a new report by the group PERC, such an idea is easier said than done. Comments report author, Brandon Scarborough: “Unfortunately, planting trees to sequester carbon dioxide to offset power plant emissions requires accurate measurements, monitoring, and long-term enforcement to ensure that actual emissions reductions take place. To landowners, and potentially taxpayers, this process introduces significant costs, and as these costs increase, they reduce the incentive to grow new forests and diminish the likelihood of creating a viable market. Given such realities, one wonders if it is really worth it.”