By comparison , 10 or 15 years ago anyone who used a computer was considered to have a `` tech job , '' but now nearly everyone uses a computer ( and a cell phone and a PDA ) Andrew Shapiro : Skeptics argue that only a small number of jobs are green . He says green industries and jobs can be the key to revitalizing economy . Comment: As economy goes green , jobs will be transformed . He says U.S. will lose competitive edge if it does n't invest in renewable energy .
Andrew Shapiro : Skeptics argue that only a small number of jobs are green . He says green industries and jobs can be the key to revitalizing economy . Comment: As economy goes green , jobs will be transformed . He says U.S. will lose competitive edge if it does n't invest in renewable energy .