@CNN: Building walls on the seafloor could prevent glaciers from melting and sea levels rising due to global warming, scientists say https://t.co/V6fJAaQ9BT https://t.co/TEL6h8Q0Mn

@CNN: Building walls on the seafloor could prevent glaciers from melting and sea levels rising due to global warming, scientists say https://t.co/V6fJAaQ9BT https://t.co/TEL6h8Q0Mn