Could these humble rows of trees prevent a natural disaster? The Vietnamese government hopes so. Mangrove forests like Bàu Cá Cái in coastal Vietnam's Quảng Ngãi province are an important shield against destructive typhoons that rock the coast each year. Unfortunately, mangrove trees have been depleted over the years by population growth, climate change, and increased use of waters for fish farming. Plantings at Bàu Cá Cái—outlined by bamboo frames to create the neat patterns seen here—have been part of a major initiative to regenerate nearly 10,000 acres of mangrove forest around the country.