edit  watch  

Sharing knowledge to build rich, sustainable lives.

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

You are encouraged 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 374,854 edits and uploaded 30,061 files.
Browse our categories or all 8,041 articles.

edit  watch  

Announcements — more

Rocket oven kickstarter.jpg Interested in a low carbon 'oven powered by just a few twigs'? Check out this winning kickstarter from our friends at http://bit.ly/rocketoven. Purchases help support Appropedia.


Earth bound radiation losses
The solar resource. Solar energy is the source of all energy on earth, available to us in a number of derivatives. Plant matter for example, which relies on solar energy for nutrition, experiences natural compression and decomposition over millions of years to form the the fossil fuels we use today for electrical generation and transportation. Other examples of this can be seen in use of biomass for fuel or the harvesting of wind energy which is reliant on solar heated air for the formation of currents.

We are also able to utilize the solar resource directly. Solar thermal technologies take advantage of this resource to heat a working fluid that can transfer energy to an air stream or water for domestic or commercial use. Solar Photovoltaic or PV devices exploit various materials (principally Silicon) that experience sub-atomic variations when exposed to solar energy in order to induce an electric current. Both solar PV and thermal technologies provide a useful source of energy with little to no moving parts, no pollution and very little embodied energy.

Corn Cob Charcoal Crusher

Turning corn cob agricultural waste into a cooking fuel that combats deforestation and indoor air pollution.

edit  watch  

Community action news

Girls on a Bicycle.JPG
Apr 24 Cycling news 2018: What Cities Need to Understand About Bikeshare Now [1]

Apr 23 1000 Electric Buses To Spearhead Paris Goal Of 100% Zero Emissions Public Transportation [2]

Apr 17 Florida: Miami's sharing potential [3]

Apr 17 Denmark: How do we utilize local knowledge so that others can benefit from it? A guide from the Danish Island of Samsø [4]

Apr 16 Reduce, reuse, repair and recycle: Recycling hope for plastic-hungry enzyme [5]

Read More...


Bill Mollison talking about the future.
You don't have a snail problem, you have a duck deficiency.

Bill MollisonW
edit  watch  

Visit the Water Portal

Estuaries and coastal waters are among the most productive ecosystems on Earth.
Water is vital for all known forms of life. Covering 71% of the Earth's surface, it is found mostly in oceans and other large water bodies. 1.6% of the total mass of the Earth's water is below ground in aquifers and 0.001% is in the air as vapor, clouds, and precipitation (rain, snow and sleet).

The Earth's water moves constantly through a cycle of evaporation and transpiration (evapotranspiration), precipitation, and runoff, usually reaching the sea. Over land, evaporation and transpiration contribute to the precipitation over land - thus deforestation and other changes to land can have wide and long-lasting effects through their impact on the water cycle.

Some observers estimate that by 2025 more than half of the world population will be vulnerable to a lack of water. Appropriate water supply and water purification technologies can help.

Related portal: Greywater
edit  watch  Selected service learning Projects gallery (refresh)

Queen's Applied Sustainability Research Group completed projects and publications: This category lists completed projects for the Category:Queens Applied Sustainability Group. Following the individual links leads to a summary of the project and key findings, related Category:Queens Applied Sustainability Group Literature Reviews, Category:Queens Applied Sustainability Group Lab Protocols , and an open access version of the paper published in a peer reviewed journal.

Queen's Applied Technology Research Group Completed Projects and Publications
edit  watch  

Selected categories

edit  watch  

Construction zone — correct mistakes & flag spam as needed

Newest articles more Wanted pages - click to add info more
Under construction
New pages being developed:
  1. ارخص شركات نقل العفش بجدة
  2. دليل شركات نقل العفش بجدة
  3. The Basic Actions To Build Leaner As Well As Stronger Body
  4. Filacycle
  5. Istanbul’da Gerçek Kadınlar Ile Seks Dolu Geceler
  6. Ataköy’de Seksi Kızlar Ve Olgun Kadınlar
  7. Yazı Tahtası
  8. FFF/FDM 3d printing with sand and ASA plastic literary review
  9. Solar Modules Modified with Energized Glass
  10. ASA Literature Review

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

Under construction

Create a new page:

  1. Nutrition
  2. Bacteria‏‎
  3. Human development
  4. Environmental science
  5. Open sustainability
  6. New Urbanism‏‎
  7. Building management systems
  8. Science‏‎
  9. Microgeneration
  10. Environmental design

These red links are invitations for you to contribute your knowledge.

Or create a page on the topic of your choice.

Newest files - images and documents that can be added to pages more

Note: Appropedia's newest files may not yet comply with our policies.

edit  watch  

Please help Appropedia grow!

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!

Questions? Comments? Visit the Village Pump. Also discuss Appropedia and related topics over on the Permies permaculture forums.

Find us on Facebook, Pinterest, StumbleUpon and Twitter. Check our Flickr images and YouTube videos.