As the Deep Ecology movement (and many others, including the oft maligned but highly perceptive chaos theory) observed, all of existence, that is, every part of the planet and the universe in which it sits, is interconnected and, in a myriad of ways, dependent on each other.  Everything is flowing, to draw a page from the ancient notion of the Great Chain of Being, as one vast experience of "beingness," a river of interlinked and symbiotic animate and inanimate exchange.
     It's a wonderful idea, really, lauding the relatedness of all things.  Yet it also daily presents us with some intricate tangles of decision making.  For instance, I read recently about how, due to various Western governments' demands that its consumers increase their use of biofuels and so reduce their use of fossil fuels, some farmers in Central America are allotting increasing amounts of land to grow the crops to provide the basis for such fuels.  While this sounds good on paper--giving a boost to these nations' economies--what has happened is that only a few (landed and established) farming families are benefiting.  In addition, as these few well connected farmers take more and more land to grow the necessary crops, other farmers, the forgetten and impoverished ones, are having great difficulty in finding land to grow food for their families.  People are starving. 
     And what seems like a good thing for the West, that is, reducing dependency on nonrenewable fossil fuels, is, ironically, doing bad things in the lives of others.
     It's a good world--didn't God say so in Genesis?--but it's a profoundly interconnected world.  And justice is complicated.
     Maybe that's why we need God.