The NYTimes has an article about how burning biomass may not be so hot after all. Some are for it, some are against it.
Burning biomass (done in incinerators, creating steam to drive generators) sounds to me like a bad idea to pursue. One reason is that the incinerator companies won’t stop at wood scraps and such, but want to build big facilities that incinerate municipal solid waste (i.e., garbage and trash) as well. This approach, with its economies of scale, creates a giant maw that must be fed, while radically decreasing incentives for recycling and waste reduction.
Another reason burning biomass to generate power is a bad idea is that we need to be using less energy, not looking for ways to create more. And I agree with those who point out that burning biomass generates unnecessary greenhouse gases. Better to put the money into public transportation and get some cars off the road.