Geothermal energy is produced from the internal heat of the Earth, especially when natural heat sources are near to the surface of the Earth. Energy is tapped from such natural heat sources by drilling into natural aquifers present and pumping out hot water or steam, forcing water through rock fractures at great depths of up to 8 kilometres. Resulting steam is then used to generate electricity. Geothermal energy is considered as a renewable energy source.
Over 20 nations use energy from natural steam. The Philippines produces one-seventh of its electricity from geothermal sources, and is an important energy source in other countries and areas, notably Iceland, northern California and parts of New Zealand. Parts of Southeast Asia, Central America and the western USA have a major geothermal potential. Southern Europe and East Africa have some notable sites.
The Encyclopedia of World Problems and Human Potential is a unique, experimental research work of the Union of International Associations. It is currently published as a searchable online platform with profiles of world problems, action strategies, and human values that are interlinked in novel and innovative ways. These connections are based on a range of relationships such as broader and narrower scope, aggravation, relatedness and more. By concentrating on these links and relationships, the Encyclopedia is uniquely positioned to bring focus to the complex and expansive sphere of global issues and their interconnected nature.
The initial content for the Encyclopedia was seeded from UIA’s Yearbook of International Organizations. UIA’s decades of collected data on the enormous variety of association life provided a broad initial perspective on the myriad problems of humanity. Recognizing that international associations are generally confronting world problems and developing action strategies based on particular values, the initial content was based on the descriptions, aims, titles and profiles of international associations.
Non-profit, apolitical, independent, and non-governmental in nature, the UIA has been a pioneer in the research, monitoring and provision of information on international organizations, international associations and their global challenges since 1907.