In this article the authors have elaborated a consistent framework for the quantification and evaluation of eco-efficiency for scenarios for waste treatment of construction and demolition (C&D) waste. Such waste systems will play an increasingly important role in the future, as there has been for many years, and still is, a significant net increase in stock in the built environment.

In North America, consideration of life cycle environmental, economic and social aspects of buildings is in vogue. This trend is clear in part from the booming memberships of the U.S. and Canadian Green Building Councils and Sustainable Buildings Canada and the growing number of buildings and communities using environmental rating systems.

The cluster of beige corrugated-iron sheds and silos don't look like much, but this unassuming factory in a suburb of Melbourne, Australia, represents a potential revolution in greenhouse gas emissions. It's the first commercial enterprise in the world dedicated to transforming waste from power stations and blast furnaces into geopolymer concrete, a particularly promising green concrete.

Concentration of greenhouse gases play major role in raising the earth

Hyderabad hitec (Hyderabad Information Technology Engineering Consultancy) city exudes all the glitz of post-liberalised India. Plush office complexes, exuberant it parks, swanky exhibition centres showcase a township riding the crest of the country economic boom.