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To catch the rain cover.png You made it happen! Get a paperback on Amazon or digitally at http://www.tocatchtherain.org.


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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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Aleiha's parabolic solar cooker

A very hot (400 °F) parabolic solar cooker. Made from an reclaimed satellite dish using bicycle powered tools.

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Community action news

AlleeImFruehling.jpg
Sep 18 Community currencies activism: Don't think of currency, but "current-sees". How do we recognise different flows of value in our society? Art Brock knows [1]

Sep 17 Paris: Journée sans voiture: les 4 premiers arrondissements de Paris piétons un dimanche par mois [2]

Sep 17 Germany launches world's first hydrogen-powered train [3]

Sep 6 Food USA: What public banks can do for food systems [4]

Sep 5 Norway builds world's tallest timber tower, and it's both environmentally friendly and fire resistant [5]

Read More...


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Mohandas Karamchand Gandhi
You must be the change you wish to see in the world.

— Gandhi W
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Blog

The Sun photographed by the Atmospheric Imaging Assembly (AIA 304) of NASA's Solar Dynamics Observatory (SDO).
Solar energy, radiant light and heat from the sun, has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation, along with secondary solar-powered resources such as wind and wave power, hydroelectricity and biomass, account for most of the available renewable energy on earth. Only a minuscule fraction of the available solar energy is used.

Solar powered electrical generation relies on heat engines and photovoltaics. Solar energy's uses are limited only by human ingenuity. A partial list of solar applications includes space heating and cooling through solar architecture, potable water via distillation and disinfection, daylighting, solar hot water, solar cooking, and high temperature process heat for industrial purposes.To harvest the solar energy, the most common way is to use solar panels.

Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy. Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air.

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ENGR 215 Introduction to Design projects – Spring 2011: Locally Delicious: The Spring 2011 semester of Engineering 215 worked with Locally Delicious to design, build, test and disseminate projects that support healthy lifestyles among youths grades 4th through 6th and their families.

Spring 2011 ENGR 215 Intro to Design Projects - Locally Delicious
Tear the Roof off
Dry sliced apples in 18 hours of sunlight with this legless solar dehydrator  
The GnomeTainer
Modular, raised garden with integrated rain catchment that can be installed on a porch  
Catch and Cook
A solar oven capable of reaching 160°F in 20 minutes  
Solar Bowling Oven
 Solar oven kids can build and use on their own  
Wormland worm bin
Scalable vermiculture system from free materials for kids  
Row Blender
 Row yourself a smoothie with an exercise powered blender  
Sodhoppers' Solar Dehydrator
Durable food dehydrator for a school from a waste kitchen cabinet  
Interactive School Garden
Modular school garden design incorporating several different garden styles  
The Solar Swing
 Solar oven for a school reaching 200°F in 30 minutes  
School Worm Bin
Worm bin for a school built from a 55 gallon drum  
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