There are many environmental problems in the Philippines. One of them is overfishing in many areas, which lead to pitiful catches. Another problem is that only ten percent of sewage is treated and cleaned, while the other 90% is dumped back to nature and the ocean, which leads to pollution. Deforestation is a serious problem, and after decades of cutting down forests, illegal logging and forest fires, there is only 3% left of original forest cover. Forest losses have also affected the Philippines with serious soil erosion, which is threatening the Philippines biodiversity.