Hurricane Harvey, 25,000-year Storm: Enhanced, or Caused by Climate Change? It was a 25,000-year storm. Its area of 24-inch rainfall was 50 to 100 times greater than anything previously recorded in the lower 48. Up to a million cars may have been flooded. In Harris County alone, 136,000 homes were flooded. Yet the official word … Continue reading Hurricane Harvey, 25,000-year Storm: Enhanced, or Caused by Climate Change?