Sustainability is defined as patterns of economic, environmental, and social progress that meet the needs of the present day without reducing the capacity to meet future need. Sustainable energy refers to those patterns of energy production and use that can support society's present and future needs...

INTRODUCTION A major challenge for mankind is an informed respose to unprecedented urban growth and the intelligent mangement of urban settlements. The 20th century began with perhaps a dozen cities of 1 million resisdents; it will end with several hundred cities of that size, including about 30 ...

INTRODUCTION A major challenge for mankind is an informed respose to unprecedented urban growth and the intelligent mangement of urban settlements. The 20th century began with perhaps a dozen cities of 1 million resisdents; it will end with several hundred cities of that size, including about 30 ...

According to the Solar Energy Industries Association reports there was a 67% increase in the solar industry from 2009 to 2010 in the United States. In addition to 67% sales increase, the U.S. solar equipment was installed in 2010 a total capacity of 956 megawatts, and the same year, a total generati...

Since the discovery of petroleum in the 1860s, fossil fuels have become the foremost source of power in the world. For over a century after their inception, their availability was very seldom called into question. The oil crisis of 1973, however, brought this issue to the forefront. With the widespr...