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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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The CCAT Wash n' Flush
Painstakingly photoshopped diagram of the Wash n' Flush
CCAT Wash n Flush. The Wash n' Flush is a Humboldt State University environmental science 410 senior project implemented by Jeffrey Steuben, Annie Welbes and Tim Dower which is located in the downstairs bathroom at CCAT. This is a toilet modification that allows users to save water by utilizing the wastewater from handwashing to flush the Toilet.

If you think of this project as a way of doing a DIY version of an Aqus Toilet, you'd be mostly right. These are also commercially popular in Japan.

The goals of our project were: conserve drinkable water by eliminating the use of clean, potable water to flush toilets; break down social stigma around toilet water pre-use; build awareness of creative water conservation; make toilet modification replicable, accessible, and affordable to low income households; and conserve water at CCAT.

We thought about the fact that clean, drinkable water is being used to flush human waste down the toilet. We consider this to be environmentally and socially irresponsible. Therefore, we took action.

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Blue_ox_earthen_oven

A scary earthen oven that uses three layers to maximize efficiency, and all three types of heat to maximize the flavor.

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Community action news

Cyclists riding in Melbourne for 350 Climate Action.jpg

Nov 11 Australia news: Is climate change to blame for Australia's bushfires? [1]

Nov 8 Australia news: Australia bushfires: 'Unprecedented' fires turn skies orange [2]

Nov 7 Ardern says New Zealand on 'right side of history' as MPs pass zero-carbon bill [3]

Nov 5 Climate news 2019: Climate change: ‘Clear and unequivocal’ emergency, say scientists [4]

Nov 2 UK Climate news: Thousands invited to join citizens' assembly [5]

Read More...


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John Muir
When one tugs at a single thing in nature, he finds it attached to the rest of the world.

John MuirW
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Hot topics / In the news


Planted cattails at Millcreek greywater
Greywater, sometimes also spelled as graywater, grey water or gray water, is all of the effluent water from a household, such as water discharged from lavatories (bathroom sinks), bathtubs, showers, clothes washers, and laundry trays. Greywater is not wastewater from a sink used for food preparation, or water closet (toilet) wastewater.

The water leaving our homes carries nutrients and value. It may also contain pathogens, and/or harsh chemicals and care should be taken with it. However, it is not a great risk compared to blackwater (sewage).

Redirecting the water we use for tasks such as showering allows us to reclaim some of that value to grow plants and recharge the water table. It may be necessary to choose our soaps and detergents more carefully, if we use the greywater for watering and fertilizing plants.

Main portal: Water
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E215 Introduction to Design projects: This gallery lists some of the projects done by Engr215 Introduction to Design taught at Humboldt State University. All semesters taught by Lonny Grafman, unless noted otherwise.

Spring 2012: Friends of the Dunes

Design and build educational displays, technologies and infrastructure for the Humboldt Coastal Nature Center  
Fall 2011: Flock House

Design and build sustainable technologies for mobile art pods interacting throughout NYC  
Spring 2011: Locally Delicious

Design and build appropriate technology projects for children that promote healthy, local eating  
Fall 2010: HBCSL Somoa Hostel

Design and build eco-projects to support a hostel being designed at the Samoa Cookhouse  
Spring 2010: RCEA

Design and build energy education boxes, housed at Redwood Coast Energy Authority to build, for classrooms in Humboldt County  
Spring 2010: World Shelters

Design, prototype and improve structures by leveraging the resources of Haiti and World Shelters  
Fall 2009: CCAT and Network for a Healthy California

Design and build appropriate technology projects for CCAT and Network for a Healthy CA  
Spring 2009: WaterPod

Design and build sustainable technologies to educate and support artists living sustainably on a barge in NYC  
Fall 2008: Full Belly Project

Design and prototype adaptions to the Universal Nut Sheller  
Spring 2008: Discovery Museum

Design and build educational flume inserts for the Redwood Discovery Museum  
Fall 2007: HBCSL

Designing and prototype model hostel cottages for the proposed Humboldt Bay Eco Hostel  
Spring 2007: RCEA

Design and build energy efficiency displays for the Redwood Coast Energy Authority (Co-taught with Professor Eileen Cashman)  
Fall 2006: CCAT

Design and prototype educational, appropriate technology, infrastructure models  
Fall 2005: Interactive Energy Efficiency Displays

Design and build educational energy displays for the Redwood Coast Energy Authority  
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