Of the approximately 500 varieties of coral known worldwide, about 400 are found in the Philippines. However their future is seriously threatened – mainly due to destructive fishing techniques, such as blast fishing and cyanide fishing, which indiscriminately destroy much of the ecosystem, including the coral reefs. In addition, global warming and ocean acidification also contribute significantly to worldwide loss. Globally coral sees 50%–70% threatened or lost; southeast Asian coral reefs are in even worse condition, and it is estimated in the Philippines the figure under threat is greater than 90%, with less than 1% in good condition. Until now proper compliance of international laws has been poor, although it is starting to be taken seriously. Meanwhile, other efforts are under way in Bantayan to accelerate the regrowth, using coral farms.