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.
By the early 1990s, Costa Rica became known as the poster child of ecotourism, with tourist arrivals reaching an average annual growth rate of 14% between 1986 to 1994.ccording to the Costa Rican Tourism Board, 47% of international tourists visiting the country in 2009 engaged in activities related to ecotourism, which includes trekking, flora, fauna, and bird watching, and visits to rural communities. However, most visitors look for adventure activities.