Great Lakes Areas of Concern rivers, and oceans causing pollution and buildup of sediment. Nonpoint source pollution is said to be the most problematic and hardest to reverse of the types of pollution because it is so hard to regulate and pinpoint where it originates. Many experts agree that nonpoint source pollution is the biggest concern facing the Great Lakes. With the increase of urbanization, a toll has been taken on the lakes in these areas. Lakes that once had stable ecosystems with the appropriate amount of plant life are now full of massive amounts of plants and algae that have been fed by excess
Great Lakes Twa where Batwa harvest clay under an informal communal tenure system are fast becoming collectivised rice-growing plantations due to a 2005 land policy change. They face another crisis as they lose another occupation that defines Batwa identity and provides social livelihood. The Great Lakes Twa speak distinct dialects of Rundi and Kiga. Great Lakes Twa The Great Lakes Twa, also known as "Batwa", "Abatwa" or "Ge-Sera", are a pygmy people who are generally assumed to be the oldest surviving population of the Great Lakes region of central Africa, though currently they live as a Bantu caste. Current populations are found in