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CCAT natural paint project
CCAT natural paint project. The Campus Center for Appropriate Technology (CCAT) at Humboldt State University in Arcata, CaliforniaW is completely remodeling the inside of their building. When all of the construction is finished the entire interior of the house will need to be painted. As an ENGR 305 project, Spring 2007, Andrea Lanctot and Jill Anderson have decided to make all the interior paints from scratch using safe natural ingredients.

The project has four main goals. The first is to research natural paint ingredients, recipes, and techniques. The second is to make several of the recipes and test the paints for color, durability, and texture. The third is to choose paints from the tests for the new CCAT house and apply them to the interior. The last goal is to test the final application with the test of time. See natural paint basics for background research on ingredients, types and advantages/disadvantages of natural paint.

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CCAT natural paint project

Homemade house paints - exposed, exploited, examined and explained.

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Community action news

Piccadilly Gardens, Manchester.jpg
Mar 21 Greater Manchester is setting out its ambitions to become one of the leading green city-regions in the UK and Europe, at today's inaugural Green Summit [1]

Mar 19 London news: London’s first eco-friendly, human-powered gym is opening [2]

Mar 15 California news: How Cooperation Richmond is empowering marginalized communities to build an equitable economy [3]

Mar 7 Climate action UK: UK carbon emissions in 2017 fell to levels last seen in 1890 [4]

Mar 1 South Africa: Cape Town’s water crisis shows the reality for cities on the front line of climate change [5]


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Permaculture is the conscious design and maintenance of agriculturally productive systems which have the diversity, stability, and resilience of natural ecosystems. It is the harmonious integration of the landscape with people providing their food, energy, shelter and other material and non-material needs in a sustainable way.

Graham Bell, The Permaculture Way
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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
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Engineering 308 (Engr 308), Technology and the Environment, is a course taught at Humboldt State University, currently by instructor Lonny Grafman.

HSU mason jar analysis

2016: Partnered with HSU Office of Sustainability and Dining Services to analyze the effects of the HSU policy regarding mason jars and disposables in terms of dollars, CO2, and energy. Compelling comparisons were created in order to educate and influence consumers.  
CCAT NZE study

2014: Partnered with CCAT to analyze the various energy uses of CCAT for their impacts (in dollars, energy, and carbon), as well as devising an implementable plan to ameliorate the impacts and to reach Net Zero Energy.  
Fuente Nueva waste project

2013: Partnered with Fuente Nueva spanish immersion charter school to analyze their waste, its impacts, and possible mitigation plans.  
Arcata bags

2012: Partnered with Humboldt Scrap to analyze the embedded energy and carbon in various reusable and single use bags in Arcata  
Dominican Republic alternative building analysis

2011: Partnered with the Dominican community of La Yuca to compare the cost, embedded energy and carbon between three building methods  
Arcata plastic bags

2010: Partnered with the City of Arcata to analyze the embedded energy and carbon in single use plastic bags in Arcata  
CCAT PV system energy analysis

2009: Teams partnered with: CCAT on their photovoltaic system, Papercrete vs. StrawBale and Environmental impact of clay vs lime; with RCEA on Street lighting Analysis); and a local business on Multi-Pure vs. Brita Analysis.  
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