Vital mangrove areas in the Philippines have shrunk to less than one percent of its area in 1920. The loss could be worth as much as $3 billion. The country was among 30 countries with the largest mangrove areas in the world in 1980. At that time, it had 146,000 hectares of mangrove forests.

Mangrove areas shrinking. (1993, September 5). Philippine Daily Inquirer, p. 15.