EcoWatch: Food, water and energy systems are inextricably linked, and as recent events like droughts, oil spills and increasing food prices make clear, the U.S. can no longer view these systems in isolation. A new paper from the GRACE Communications Foundation explains that when the food, water and energy nexus becomes unbalanced, there are clear consequences for public health, our economy and the environment. The paper, Food, Water and Energy: Know the Nexus, describes how and where these systems intersect,...