Oposa v. Factoran

This landmark Filipino environmental law case established that the public trust doctrine exists within the constitutional right to a healthy environment. It also established that schoolchildren could bring a class action suit on behalf of their generation and future generations to secure protection of the environment. The case concerned deforestation due to timber leases issued by the government. The court invalidated these leases and found that the government has a duty to conservation the country's forests, minerals, lands, waters, fisheries, wildlife, and other natural resources.