1. Surfside condo collapse investigators provide key insights into possible causes of the disaster. Here are the top takeaways

    By Elizabeth Wolfe, CNN Federal investigators on Thursday shared updates on their probe into the cause of the catastrophic 2021 condominium collapse in Surfside, Florida, providing key insights into the factors that may have led to the deaths of 98 people under a mountain of rubbl
  2. What is seawater intrusion? A hydrogeologist explains the shifting balance between fresh and salt water at the coast

    By Holly Michael, Director, Delaware Environmental Institute, and Professor of Earth Sciences and Civil and Environmental Engineering, University of Delaware Seawater intrusion is the movement of saline water from the ocean or estuaries into freshwater systems. The seawater that h