Nigeria Sudan savannah is similar but with shorter grasses and shorter trees. Sahel savannah consists of patches of grass and sand, found in the northeast. In the Sahel region, rain is less than per year and the Sahara Desert is encroaching. In the dry northeast corner of the country lies Lake Chad, which Nigeria shares with Niger, Chad and Cameroon. Nigeria's Delta region, home of the large oil industry, experiences serious oil spills and other environmental problems, which has caused conflict. Waste management including sewage treatment, the linked processes of deforestation and soil degradation, and climate change or global warming are
Niger–Nigeria relations on control of desertification, promotion of conservation, rational utilization and development of lands, water resources, flora and fauna. "The Maiduguri Agreement", signed on 18 July 1990, and amended 5 October 1998, further deals with development, conservation, and utilization of the water resources of trans–boundary catchments. The Maiduguri Agreement and Abuja Agreement are overseen by the NNJC. Niger–Nigeria relations The Niger–Nigeria relations refers to the current and historical relationship between Niger and Nigeria. Relations are based on a long shared border and common cultural and historical interactions. The 1,500 kilometer (930 mi) long border between Niger to the north and Nigeria