Chiari Malformation. Chiari malformations (CMs) are structural defects in the cerebellum, the part of the brain that controls balance. When the indented bony space at the lower rear of the skull is smaller than normal, the cerebellum and brainstem can be pushed downward.
Slum Tours: Ecotourism or Exploitation? In Kenya's capital, one of the most lucrative -- and controversial -- effects of ecotourism has been the proliferation of tours through Kibera slum, home to more than 1 million people, almost a third of Nairobi's population.
However, this same growth creates significant opportunities for both conservation and local communities. Ecotourism can provide much-needed revenues for the protection of national parks and other natural areas -- revenues that might not be available from other sources.Additionally, ecotourism can provide a viable economic development alternative for local communities with few other income-generating options.n fact, tourism is now the world's largest industry, with nature tourism the fastest growing segment. People want to experience nature and the world, but should try to do so in a way that doesn't impact the natural environment.