As far as the environment of Nauru is concerned, there have been limited natural freshwater resources, roof storage tanks that collect rainwater and desalination plants provide water; a century of intensive phosphate mining beginning in 1906 left the central 90% of Nauru a wasteland; cadmium residue, phosphate dust, and other contaminants have caused air and water pollution with negative impacts on health; climate change has brought on rising sea levels and inland water shortages. As for nvironment - international agreements, we have; Biodiversity, Climate Change, Climate Change-Kyoto Protocol, Climate Change-Paris Agreement, Comprehensive Nuclear Test Ban, Desertification, Hazardous Wastes, Law of the Sea, Marine Dumping-London Convention, Ozone Layer Protection, Whaling.