I think we are all inexorably connected. No matter how alone one feels and no matter how much we would like to retreat in a bubble world or believe that we are so wonderfully independent, the truth of the matter is that we are so wonderfully linked in so many ways! Economics and the environment is only a part of it. I love these images, the London one especially hit me. I found them in The Economics of Ecosystems and Biodiversity (TEEB) interim report. Check out the report here if that kind of stuff floats your boat.