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There are four basic Hexayurt sizes which cover a variety of needs.
What is it? The Hexayurt is a refugee shelter system based on work done at the Rocky Mountain Institute. It uses an approach based on "autonomous building" to provide not just a shelter, but a comprehensive family support unit which includes drinking water purification, composting toilets, fuel-efficient stoves and solar electric lighting. Other systems can be added in a modular fashion.

Is this for real? Yes. Both the American Red Cross and the US Department of Defense have examined the Hexayurt system in detail and found that it has considerable merit and utility. I hope that we will see it in use by international agencies within two years. The best place to get started is to read the slides from the presentation Vinay Gupta gave at the Pentagon in December 2006: Pentagon Presentation (pdf) - 20 pages, not much text, and the best summary of the system we currently have online.

Projected Costs: Shelter: $200 - $500+ per single family unit depending on size, climate and use duration Infrastructure Package: around $100 per unit.

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There are four basic Hexayurt sizes which cover a variety of needs.
What is it? The Hexayurt is a refugee shelter system based on work done at the Rocky Mountain Institute. It uses an approach based on "autonomous building" to provide not just a shelter, but a comprehensive family support unit which includes drinking water purification, composting toilets, fuel-efficient stoves and solar electric lighting. Other systems can be added in a modular fashion.

Is this for real? Yes. Both the American Red Cross and the US Department of Defense have examined the Hexayurt system in detail and found that it has considerable merit and utility. I hope that we will see it in use by international agencies within two years. The best place to get started is to read the slides from the presentation Vinay Gupta gave at the Pentagon in December 2006: Pentagon Presentation (pdf) - 20 pages, not much text, and the best summary of the system we currently have online.

Projected Costs: Shelter: $200 - $500+ per single family unit depending on size, climate and use duration Infrastructure Package: around $100 per unit.

...Archive/Nominations

Portal:Health and safety/Selected page/2

The new and improved Marsh
AEF greywater. For our final project we rebuilt a greywater system at the CSA, Arcata Educational Farm. Greywater consists of all used water produced at a particular site, except for water coming from the toilet, which is known as blackwater. When building a greywater system you first separate the greywater from the blackwater and send the greywater through a separate treatment system. Ideally, after the greywater passes through the purification process it will then be able to be reused. Greywater systems are an appropriate use of technology for many reasons. Some of them being: they reduce the use of fresh water, there is less stress on existing more conventional septic tanks, it is a highly effective purification process, and there is less chemical and energy use required. In our case the majority of water used on the farm is to water vegetables, herbs, flowers and fruits, and the source of greywater comes from the outdoor kitchen, used by the farmers and volunteers to cook and wash vegetables or dishes.
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After being hung up overnight in a breezy location, shirts worn once (even in the tropics!) smell quite fresh enough to wear again.
Washing and drying clothes. Washing and drying clothing are common activities that can use a lot of energy - if we aren't careful. But there are a lot of things, most importantly washing in cold water and line drying, which are not only greener, but will make your clothes last longer (as long as you don't leave them outside too long, to fade).

Why does it matter? - Energy usage: We need to use less energy with efficient washers and cold water (unless there is abundant solar hot water), and use renewable energy where possible.

Water usage: The more water we use, the harder it is to process the waste water, and the more strain we place on the water supply.

Water pollution: Minimize the use of detergent. Consider these words about the chemicals you use. Once people appreciate that they make other things dirty when they make their clothes clean, they think differently about what they're doing.

Labor: You have better things to do than wash clothes, and you'd rather your hands didn't become dry and cracked, so you would probably choose a washing machine over hand-washing your clothes. Reducing the need for washing: Environmental impact and labor can both be saved by measures that reduce the need for washing: suitable choice of clothes (color and fabric) and habits such as hanging and airing clothes. See the Clothing page for more detailed suggestions.

Saving energy: About 90% of the energy used for washing clothes is for heating the water. There are two ways to reduce the amount of energy used for washing clothes—use less water and use cooler water. Unless you're dealing with oily stains, the warm or cold water setting on your machine will generally do a good job of cleaning your clothes. Switching your temperature setting from hot to warm can cut a load's energy use in half.

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Preparing the trap
GEM mosquito control. This method of mosquito control involves the use of water containers inside/outside households as well as other buildings, regularly replaced to kill mosquito larvae. It is well known that mosquitoes lay eggs in water where ever it be. It is also equally true that they visit human dwellings as well as cattle/bird sheds for feeding usually from dusk to dawn and they cannot complete their reproductive cycle without animal protein. Exploiting these weaknesses one could achieve mosquito control. For that provide a few micro water bodies around the building using household utensils. Destroy larvae as & when they appear.

By two months one gets tangible reduction in mosquito problem. This experience has repeated at many sites. Further research unearthed the reasons for the magnificent result produced in a short span of two months.

This can be easily extended to larger areas with people’s participation as well as cooperation & guidance from concerned agencies like the WHO and the perennial & apparently unsurmountable problems like Mosquito menace & Malaria, Dengue fever & a host of other problems can be solved once for all. See also Some history. This tall claim is based on the confidence given by the three decade long experience in the matter.

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Horsetail
The chief medicinal property of horsetail is its high silica content. The best dietary source of silica is whole grains-meaning much of our dietary silica is lost in the refining process. In addition to silica, horsetail contains large amounts of potassium as well as aconitic acid, equiaitinee, starch and many fatty acids. Horsetail is often used for mending broken bones. Our hair, skin, nails, and bones all need silica. Silica gives our cells strength, durability, and flexibility.

Think about walking outdoors on the grass. You put a lot of weight on the little blades of grass, but they spring right back up again. This is because of the high silica content in the grass. Silica enables the blades of grass to be resilient and bend, yet not be broken. Without silica, our bones would be very brittle and break easily. The same is true of hair, skin, and nails. Without enough silica in our diet, our hair can be brittle and break easily, causing split ends.

Without enough silica, our skin loses its elasticity. Without enough silica, our nails become very brittle and split. As horsetail is very, very high in silica, it feeds our hair, skin, and nails along with our bones and keep the cells in these systems strong and resilient.

Horsetail also has antibacterial, antiseptic, and astringent properties. It is a wonderful herb for the genitourinary system. It can tone the bladder as well as the urinary mucous membranes. Horsetail helps the body to fight infection. It has been used for cystitis, prostatitis, urethritis, and for incontinece in adults as well as in children.

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