As Hurricane Harvey’s floodwaters poured into his family’s Houston home on Aug. 28, Isiah Courtney slung sacks of clothing over his shoulder, lifted his 85-lb. pit bull in his arms and led his wife and two young children to safety. Two days later, the 28-year-old father reversed that trek, returning home for the first time since the storm slammed through Texas, causing an estimated $150 billion in damage and leaving more than 70 people dead.