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Sharing knowledge to build rich, sustainable lives.

Appropedia is for collaborative solutions
in sustainability, appropriate technology, poverty reduction, and permaculture.

You are welcome to add to and edit Appropedia -
your site to find, co-create and improve the solutions we need. Our vision and mission.

Contributors have made 336,624 edits and uploaded 26,529 files.
Browse our categories or all 7,215 articles.

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Monolithic dome office
Monolithic domes are constructed following a method that requires a tough, inflatable Airform, steel-reinforced concrete and a polyurethane foam insulation. Each of these ingredients is used in a technologically specific way. This technology was developed by the Monolithic Dome Institute (MDI). The domes can be designed to fit any architectural need: homes, cabins, churches, schools, gymnasiums, arenas and stadiums, bulk storages, landlord dwellings and various other privately or publicly owned facilities. The dome, when finished, is earthquake, tornado and hurricane resistant (FEMA rates them as "near-absolute protection" from F5 tornadoes and Category 5 Hurricanes).

MDI has also developed the technology to build so-called "EcoShells". These are simple structures to provide for the basic needs of a family. They are designed specifically to answer the needs of shelterless people worldwide. They are strong structures that can withstand natural disasters, fire, termites and rot. In underdeveloped areas with hot climates, EcoShells make affordable, low maintenance, sturdy housing. In industrialized nations, EcoShells make superior workshops, garages, storage sheds, etc.

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Hexayurt Project

The Hexayurt is a refugee shelter system that 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.

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Community action news

Jun 30 Climate action UK: UK sets ambitious new 2030s carbon target [1]

Jun 30 Europe: Could intercity cycle highways revolutionise the daily commute? [2]

Jun 28 Climate news: US, Canada and Mexico pledge 50% of power from clean energy by 2025 [3]

Jun 28 'Largest community-owned' solar farm in Australia taking root in Canberra vineyard [4]

Römerberg houses on the west side.jpg
Jun 24 Germany: German government agrees to ban fracking after years of dispute [5]

Read More...


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Thomas Edison
I’d put my money on the Sun and Solar Energy, what a source of Power! I hope we don’t have to wait until oil and coal run out, before we tackle that.

Thomas EdisonW
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Hot topics / In the news

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Blog

Planted cattails at Millcreek greywater
Greywater, sometimes also spelled as graywater, grey water or gray water, is all of the effluent water from a household, such as water discharged from lavatories (bathroom sinks), bathtubs, showers, clothes washers, and laundry trays. Greywater is not wastewater from a sink used for food preparation, or water closet (toilet) wastewater.

The water leaving our homes carries nutrients and value. It may also contain pathogens, and/or harsh chemicals and care should be taken with it. However, it is not a great risk compared to blackwater (sewage).

Redirecting the water we use for tasks such as showering allows us to reclaim some of that value to grow plants and recharge the water table. It may be necessary to choose our soaps and detergents more carefully, if we use the greywater for watering and fertilizing plants.

Main portal: Water
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Engr305 Appropriate Technology Projects: Below are selected service learning projects from Engr305 Appropriate Technology, which is a course on appropriate technology at Humboldt State University taught by instructor Lonny Grafman.

Papasan Chair Solar Cooker

A solar cooker and chair when not in use  
Parabolic basket and tin can solar cooker

Solar cooker out of local invasive species and waste materials  
Plastering CCAT Earthbag Terrace

A sturdy, natural plaster covering to the EarthBag gardening terrace being built in front of CCAT  
Rocket stove biomass charcoal

Use of biomass waste charcoal briquettes for rocket stove  
Rowan's portable pedal power generator

A pedal power generator  
Small greenhouse rainwater catchment

A rainwater catchment system for a greenhouse  
Solar Charged Lawnmower

An electric lawnmower that utilizes solar power as an energy source  
Solar heating box

A passive solar heating box  
Sunbrella

An umbrella in the rain, a solar cooker in the Sun  
Sunny Brae Middle School Garden

A garden at Sunny Brae Middle School  
Sunny Brae rainwater catchment system

A residential rainwater catchment system  
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Selected categories

Topics
Energy

Solar
Water
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Construction zone — correct mistakes & flag spam as needed

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Under construction
New pages being developed:
  1. Open Source Laser Polymer Welding System: Design and Characterization of Linear Low-Density Polyethylene Multilayer Welds
  2. Permiechat
  3. Permies.slack.com : a chat for all permies in all languages (and a common good)
  4. Utilisateur:Pierro78/Permiechat-logodraft
  5. Permies-chat
  6. Film Demain
  7. Permies-slack
  8. Permiechat.slack.com : a chat for all permies in all languages (and a common good)
  9. Athena Maintenance
  10. Athena Printing Basics

Note: Appropedia's newest pages may not yet comply with our policies. Page titles in italics are "redirects," often created when moving a page.

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  1. Nutrition
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We want your projects, current works, observations and wisdom! See Contributing content. Improve articles by clicking "edit" at top of the page or section. Our philosophy is: Be Bold and contribute!

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