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====How to Build/Buy a "Green" (Environmentally Friendly) House==== ====How to Prepare Construction Materials====

*'''How Many people: several''' ...usands of schools, while in the latter case there could be just one school to build, or usually a small number. Local authorities are sometimes also invo

...n referred to in the same way. Hydrated lime is a more convenient material to handle and use than quicklime. Quicklime and hydrated lime have a very wide ...the limestone to a temperature high enough (e.g. 1000°C in a lime kiln) to 'drive off' carbon dioxide, CO₂. The equation for this process,

*'''How Many people?''' *'''How Long does it take?'''

*'''Problem: Alternatives to Portland Cement''' *'''Difficulty: Medium to high'''

*'''How Many people?''' *'''How Long does it take?'''

*'''How Many people?''' *'''How Long does it take?'''

...re very actively trying to convince the world's politicians to take action to prevent harmful practices, practical actions are also being undertaken by m ...a community has felt the effects of the loss of the reef, they may decide to take action.

...cost. There are addresses and literature lists for further information and to obtain more detailed technical information. ...st developing countries. In contrast, many wealthy people in Europe choose to live under a meticulously manicured reed thatch or perhaps, in N. America,

...R&D conducted in the last 20 years has clearly demonstrated that, due to vetiver grass’ extraordinary characteristics, VS can be now being used as ====What does the Vetiver System do and how does it work? ====

...esigned so that it can be built on site, using standard building bricks or blocks and lined with refractory bricks. All the steel components, such as the loa ...tribute towards combustion but additional wood or kerosene may be required to ensure that adequate combustion temperatures are maintained.