with lower run-off. The mountains are also known to have a north-Sahelian climate in the southern region, with greater amounts of precipitation between the months of May and September. The rainfall is subject to the Intertropical Convergence Zone (ITCZ). History of protection Just under one-tenth of World Heritage Sites are in Africa, but the site was added to the UNESCO World Heritage Site in February 2016. During this process, there was much debate over what should be included. First of all, two administration zones and several villages had to reach agreement on whether it was considered a part of the World Heritage Site. However, its establishment has benefited Chad by increasing income in the area from tourists who spend money to stay. Also, the Chadian government eventually reduced the size of the protected area due to oil exploration. The Ennedi suffers from high income inequality, so the use of oil reserves has allowed for better redistribution of wealth. There is believed to have been a partnership contract between the State Party and oil companies for oil exploration and the private lease of land which have raised regarding the reduced amount of protected area by UNESCO. As a result to this increase in oil exploitation, there has been accidental oil spills in Chad, leaving the contamination of groundwater, accidental chemical spills, and the reduction in air quality. African Parks assumed management of this area in partnership with the Chadian government in early 2018. African Parks intends to improve the park's infrastructure and explore the potential for tourism to amass support for this landscape and to contribute to the needs of the local people. The European Union contributed €4.7 million to African Parks, and the Dutch Postcode Lottery gave around €3 million over three years to this organization. Furthermore, about , a large portion of the Ennedi Plateau, was designated as the Ennedi Natural and Cultural Reserve by the Chadian government in January 2019. The World Bank has also worked with the Chadians by recommending the oil-revenues-management-and-redistribution program, which states that “70% of direct oil revenues are to be allocated to priority sectors, 15% to public investments, 5% to the oil-producing department, and 10% to future generations.” However, the Chadian government has already been criticized for not abiding by the program. Fauna Unfortunately, not a lot of studies have been conducted on Northern Chad due to security issues, harsh climatic conditions, wars,