Briny… thunderous… vast. Standing on the edge of an ocean, feet curled into the damp sand, one can't help but feel small—whether the ocean in question is the Pacific along Oregon's coast, where only the foolhardy dares a dip in the chilly waters sans wetsuit, or the waves of the Florida Keys, where the Atlantic turns clear and warm as it mingles with the Gulf of Mexico. On a human scale, the world's oceans feel wild and interminable: a resource that we can use but never control, and certainly never harm. They seem too vast, too varied, too…too to ever succumb to the harm that 7.3 billion humans (and counting) could mete out. Right?