Background
Biodiversity in Ghana is under increasing pressure from agricultural expansion, mining, logging and other socio-economic factors. Approximately 22,000 hectares of forest are cleared annually, and about 35 % of the country's surface area is exposed to desertification. Lowered groundwater levels, sedimentation of river courses and increased flood risks are the consequences of increasing drought and climate change. Many aquatic ecosystems suffer from eutrophication; untreated municipal wastewater and nitrate from agriculture are major contributors.
The economic loss caused by the decline in biological diversity due to deforestation and land degradation is estimated at about 54 billion US dollars (about 4 % of the gross domestic product) in Ghana.