Eco-Patent Commons shares earth-friendly tech

An article by Martin LaMonica, Staff Writer for CNET News.com documents an Eco-Patent Commons launched by IBM. Is this IBM trying to green their image and the declining image of the patent system itself? Is this like their contributions of patents to FLOSS projects has done for their image in the FLOSS community? We still need to ask why various IBM lawyers promote patentability in subject matter areas where we would be better off having no patents at all, such as information/mental processes.