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Friends of the Dunes living green roof educational model
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CCAT Cold Box: An energy efficient solution to a refrigerator
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To catch the rain cover.pngRainwater catchment around the world. Get a paperback on Amazon or free digitally at http://www.tocatchtherain.org.


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Sectional view of sand dam
Sand dams. Drought is the most serious natural hazard facing Eastern Africa in terms of severity and frequency of occurrence. The most seriously affected areas are Arid and Semi Arid Lands (ASALS) that face frequent reduction of water or moisture to significantly below the normal or expected amount Pastoralists and agro pastoralists who occupy this vast region barely meet basic water requirements. Consequently they suffer from livelihood losses, hunger, diseases, conflict and internal displacements. The worst affected are women and children who may have to walk all day long in search of water.

Due to limited and unreliable rainfall most rivers are ephemeral seasonal sandy bed streams and only experience heavy water run-off for short periods of time after rain. During such periods of high flows, large quantities of sand are transported downstream while others get trapped on the upstream sides of rocks ledges along the stream. Such sand traps form natural aquifers that are capable of providing clean adequate water if well harnessed. Using appropriate technologies this can be exploited for water storage in the form of sand dams.

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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

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Jan 13 New Zealand schools to teach students about climate crisis, activism and 'eco anxiety' [1]

Jan 13 Australia news: The government has been forced to talk about climate change, so it’s taking a subtle – and sinister – approach, Greg Jericho [2]

Jan 2 Germany cuts fares for long-distance rail travel in response to climate crisis [3]

Dec 31 Barcelona to open southern Europe's biggest low-emissions zone [4]

Dec 20 Netherlands: Dutch supreme court upholds landmark ruling demanding climate action [5]

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Albert Einstein
Problems cannot be solved at the same level of awareness that created them.

— Albert EinsteinW
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Visit the Service learning Portal

Samoa Hostel Windbelt: An array of wind belts that can charge a cell phone
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Service learning as a teaching method combines community service with academic instruction that focuses on critical, reflective thinking and civic responsibility. Service learning programs involve students in organized community service that addresses local and global needs, while developing their academic skills, sense of civic responsibility, and commitment to the community. Internships offer ways individuals can learn from valuable work experiences while also contributing to the host's mission.

Service learning using Appropedia helps to create an essential knowledge base for the world via learning experiences for individuals and classes. The Appropedia Foundation and the Appropedia community work with universities via service learning courses, as well as service learning programs to create these opportunities. Appropedia internships also offer opportunities for service learning.

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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.

AEF food dehydrator
A solar dehydrator to help preserve surplus crops 
AEF greywater
Greywater system at the CSA, Arcata Educational Farm 
AEF informational kiosk
An earthen informational kiosk 
AEF photovoltaic system
Modified off-grid photovoltaic system 
AEF solar water heater
Improved solar water heating system 
AEF spiral herb garden
Restored the existing herb spiral 
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