Tag: dead zones

  • Farmed Fish Production Overtakes Beef

    As the global demand for animal protein grew more than fivefold over the second half of the twentieth century, humans began to press against the productivity constraints of the world’s rangelands and oceans. Annual beef production climbed …

  • Aging Sewer Infrastructures Need Critical Upkeep Actions

    As Marion Divers, a principal author of the study, has pointed out: “You build a sewer system once, put it underground, and unless there’s a catastrophic failure, you may not have a reason to dig it up and make sure it’s not leaking. Now sewers across the United States and in Pittsburgh are aging, and…