Who owns the earth?

Ask someone this simple question and the answer is likely to be “all of us.” Yet we create borders, we build fences and erect wall to prevent the free circulation of people just like us. Chief Seattle is quoted to have said “We are part of the earth and the earth is part of us.” I’ve also seen bumper stickers attributed to him saying, “the earth don’t belong to us, we belong to the earth.” So where does all that debate about immigration that rage from North America to Europe or even Asia fits into that noble and truly global scope? The states and their arbitrary borders don’t make much sense in this day and age, but for the politicians who want to hang to power and would rather be a big fish in a small pond than a small one on one unified blue planet. It’s the old “divide to conquer” doctrine. Going supranational would get rid of wars, of waste and open up the way to managing our resources much more effectively. Sounds great, so let’s do it! Now, who do we call to set that program up?