Guilt

"We are all parasites," a friend recently remarked as our train moved past the graffiti covered walls of Berlin. "Anyone who does not understand this--or thinks that somehow the good that they do in this world outweighs the bad--is delusional." She is a scientist working for the UK Energy Saving Trust, which markets a low carbon lifestyle to the British public. She entertains very few romantic notions of environmentalism. "I think if we really looked at the life cycle of human beings we would get some very surprising results," she said. "I am pretty sure we need lazy people kept happy by…