Portal:Sustainable development
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  Sustainable development has been defined as balancing the fulfillment of human needs with the protection of the natural environment so that these needs can be met not only in the present, but in the indefinite future. The term was used by the Brundtland Commission which coined what has become the most often-quoted definition of sustainable development as development that "meets the needs of the present without compromising the ability of future generations to meet their own needs." The field of sustainable development can be conceptually divided into four general dimensions: social, economic, environmental and institutional. The first three dimensions address key principles of sustainability, while the final dimension addresses key institutional policy and capacity issues.
 The rugged and low-power computers will contain flash memory instead of a hard drive and will use Linux as their operating system. Mobile ad-hoc networking will be used to allow many machines Internet access from one connection. The laptops will be sold to governments and issued to children by schools on a basis of one laptop per child. Quanta Computer, the project's contract manufacturer, indicated seven nations have committed to buy the XO-1 for their schoolchildren, including Argentina, Brazil, Libya, Nigeria, Rwanda, Thailand and Uruguay. OLPC has stated a consumer version of the XO laptop is not planned. However, Quanta will be offering machines very similar to the XO machine on the open market.  Child poverty concerns poverty of people under the age of 18.  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.  Hansen has focused on planetary research that involves trying to understand the climate change on earth that will result from anthropogenic changes of the atmospheric composition. One of his research interests is radiative transfer in planetary atmospheres, especially interpreting remote sounding of the earth's atmosphere and surface from satellites. Such data, appropriately analyzed, may provide one of the most effective ways to monitor and study global change on the earth. Dr. Hansen also is interested in the development and application of global numerical models for the purpose of understanding current climate trends and projecting humans' potential impacts on climate.
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