We welcome a guest post today from Stan Ulanski, author of The Gulf Stream: Tiny Plankton, Giant Bluefin, and the Amazing Story of the Powerful River in the Atlantic. After the deadly explosion on an oil rig off the coast of Louisiana last week, thousands of gallons of oil started pouring into the waters of the Gulf of Mexico. We turned to Ulanski to find out what kind of environmental effects we may see from this spill. This is his response.--ellen Oil is undeniably the lifeblood of an industrialized society, but the increasing demand for...