It's cleaner.... Yes, it's not perfect but that's not a vaid reason to rail against them imo. To make anything takes materials.... We can't be driving around in vaporware cars all day, life doesn't work like that. I always love when people imply that gas spawns at the pump like it's a freaking replicator from star trek.,(reply>), we could return to wood and steam power. imminently green and natural, recyclable.