Natural building involves a range of
building systems and materials that place major emphasis on
sustainability. Ways of achieving sustainability through natural building focus on durability and the use of minimally processed, plentiful or
renewable resources, as well as those which, while
recycled or salvaged, produce healthy living environments and maintain indoor air quality. "Natural building" is a general term with different interpretations by its – mostly – self-directed practitioners.
The basis of natural building is the need to lessen the environmental impact of buildings and other supporting systems, without sacrificing comfort, health or aesthetics. To be more sustainable, natural building uses primarily materials which are abundantly available, renewable, reused or recycled. The use of rapidly renewable materials is increasingly a focus. An emphasis on building compactly and minimizing the ecological footprint is common, as are on-site handling of energy acquisition, on-site water capture, alternate sewage treatment and water reuse.
Other concepts, methods and strategies often (or sometimes) associated with natural building include: building "underground," earth sheltering, or berming, "green" or "living" planted roofs, thatched roofs and cement-free earthen floors, rubble-trench, or gabion foundations.
The Foundation for International Community Assistance (FINCA International) is a non-profit, microfinance organization, founded by John Hatch in 1984. Sometimes referred to as the "World Bank for the Poor" and a "poverty vaccine for the planet," FINCA is the innovator of the village banking methodology in microcredit and is widely regarded as one of the pioneers of modern day microfinance. With its headquarters in Washington, DC, FINCA has 21 affiliated host-country institutions (affiliates), in Latin America, the Caribbean, Africa, Eastern Europe, the Caucasus and Central Asia. Along with Grameen Bank and Accion International, FINCA is considered to be one of the most influential microfinance organizations in the world.
Pioneered by FINCA, village banking is arguably the world’s most widely-imitated microfinance methodology. A village bank is an informal self-help support group of 20-30 members, predominantly female heads-of-household. Among US-based non-profit agencies alone there are at least 31 microfinance institutions (MFIs) that have collectively created over 400 village banking programs in at least 90 countries. And in many of these countries there are host-country MFIs—sometimes dozens—that are village banking practitioners as well.