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Emilio-thumb.png Emilio Velis has been appointed the new Executive Director of the Appropedia Foundation! Read more...


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Rope pump upper construction
Rope pumps. Industrial hand pumps, such as the Indian Mark II, for communal wells donated by development projects often break down after two years. If maintenance costs are the responsibility of the users, then this cost is too high when repairs prove necessary and the pump is left nonfunctional.

An alternative reliable hand pump is needed for communal and private use to supply clean drinking water and irrigation. These pumps will raise the standard of living if they are low cost, reliable and pump water effectively. Efficiency is critical to irrigate a garden in the dry season due to the relatively large amount of water involved. Such gardens provide food and increased income.

Local affordability, maintenance and good pump efficiency are required features. Local affordability means a twenty-to-hundred-fold cost reduction compared to imported industrial goods. Local maintenance is only possible when made with local resources and skills.

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Corn Cob Charcoal Crusher

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

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Community action news

Above Langdon Brook - geograph.org.uk.jpg

Oct 13 Don’t frack with us: meet the victorious activist ‘Nanas’ of Lancashire [1]

Oct 10 Community involvement UK news: Becoming Unstuck With Relational Activism [2]

Oct 10 How has Denmark become regularly the happiest nation in the world? Empathy classes at school help [3]

Oct 3 Climate news 2019: What does Greta Thunberg's call for equity mean? [4]

Sep 19 Climate news 2019: For the sake of life on Earth, we must put a limit on wealth, George Monbiot [5]

Read More...


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William Cullen Bryant
A breeze came wandering from the sky, light as the whispers of a dream; He put the overhanging grasses by, and softly stooped to kiss the stream, The pretty stream, the flattered stream, The shy, yet unreluctant stream of wind.

William Cullen BryantW
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Hot topics / In the news


You can have a green Christmas.
Green living (or sustainable living) is about practical choices, large and small, to preserve the earth and have a better quality of life. It is a lifestyle that attempts to reduce an individual's or society's use of the Earth's natural resources and his or her own resources.

In order to make sustainable choices, it is very helpful to have solid, reliable information that tells us which behaviors are sustainable and which are unsustainable. In quantitative terms, which actions will make the greatest difference, and should be prioritized. Green living can be high tech (buying a hybrid vehicle), low tech (green cleaning, or completely "back to nature." It can be smart grid or off the grid. Sustainable city living explains some of the areas of action for a city dweller.

Practitioners of sustainable living often attempt to reduce their carbon footprint by altering methods of transportation, energy consumption and diet. Proponents of sustainable living aim to conduct their lives in ways that are consistent with sustainability, in natural balance and respectful of humanity's symbiotic relationship with the Earth's natural ecology and cycles. The practice and general philosophy of ecological living is highly interrelated with the overall principles of sustainable development.

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ENGR 215 Introduction to Design projects – Spring 2010: RCEA: Two labs of the Spring 2010 semester of Engineering 215 worked with the Redwood Coast Energy Authority to build energy education boxes for classrooms in Humboldt County. These boxes are designed for different K-12 grade ranges and cover one of three topics: energy conservation, renewable energy or climate change.

Spring 2010 ENGR 215 Intro to Design Projects - RCEA
The Power of Wind
Educates students on the basics of wind power  
The Rad Triad
A Chutes and Ladders-like board game, a popup book and a sing-a-long song  
Weather Warnings
Teaches climate change through a movie, three stations, and a worksheet  
Modeling Renewable Energy
Educates students on many types of renewable energy  
Bust-A-Watt
Teaches energy conservation through activities, home assessments, and an art assignment  
Seas of Change
Educates students about the polar ice caps melting effects of climate change through a hands-on model  
Energy in a Cinch
Teaches about renewable energy through the use of a Windbelt  
CAN YOU WorKIT
Students assemble and operate a hand crank electrical generators  
Climate Crusaders
A Cap-and-Trade game and a model greenhouse gas experiment  
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Energy

Solar
Water
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