As far as the environment of Azerbaijan is concerned, there have been local scientists consider the Abseron Yasaqligi (Apsheron Peninsula) (including Baku and Sumqayit) and the Caspian Sea to be the ecologically most devastated area in the world because of severe air, soil, and water pollution; soil pollution results from oil spills, from the use of DDT pesticide, and from toxic defoliants used in the production of cotton; surface and underground water are polluted by untreated municipal and industrial wastewater and agricultural run-off. As for nvironment - international agreements, we have; Air Pollution, Biodiversity, Climate Change, Climate Change-Kyoto Protocol, Climate Change-Paris Agreement, Comprehensive Nuclear Test Ban, Desertification, Endangered Species, Hazardous Wastes, Law of the Sea, Marine Dumping-London Convention, Ozone Layer Protection, Ship Pollution, Wetlands.