Can coffee grounds be used for biodiesel?

This might be useful for all the great coffee shops in Nashville to use their used coffee grounds this way as opposed to having to throw them out or use them for compost. The University of Nevada had three chemical engineers who believed they could extract oil from the used beans and convert them to a biodiesel fuel.

As it turns out, 15% of used coffee beans are oil and that could be very valuable to anyone using oil because the world produces and consumes over 16 billion pounds of coffee per year.

Read more of this interesting story at ARS Technica.

Tn. Dept of Agriculture recommends a real tree this year for Christmas

The Tennessee Department of Agriculture is asking residents to use real Christmas trees this holiday season instead of artificial types.

Fake trees are made of plastic and take years to biodegrade once they are discarded.

On the other hand, experts said farm-grown trees help the environment while they are growing and can be recycled once the holidays are over.

Earthships- Architecture for the Planet

Earthship n. 1. passive solar home made of natural and recycled materials 2. thermal mass construction for temperature stabilization. 3. renewable energy & integrated water systems make the Earthship an off-grid home with little to no utility bills.

Biotecture n. 1. the profession of designing buildings and environments with consideration for their sustainability. 2. A combination of biology and architecture.


"self contained dwellings that will sail on the seas of tomorrow"


". . . the Earthship is probably the model of a sustainable home unrivaled in the modern world."


Earthship Biotecture, based in Taos, NM, USA is a global company offering proven, totally sustainable designs, construction drawings & details, products, educational materials, lectures / presentations, consultation & guidance toward getting people in sustainable housing. From single family to colony / community / city complexes.



Learn more about Earthship homes at Earthship Biotecture.

See videos about the Earthship home on YouTube.

Recycle Here- photograph