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This paper addresses the sustainability of sea water cooled air conditioning systems. Water cooled air conditioning systems are more efficient and ecologically friendly than air cooled systems. But with the scarcity of fresh water and initial cost compared with other systems if sea water is a viable alternative.

Breaks down the pros and cons of the systems most used for sustainable heating and cooling.

This is a different page from the same website I posted about the Sunshot Initiative, the U.S. Department of Energy. It was cool to find that this website has so many how-to guides for individuals and communities who are interested in solar energy projects. I was surprised that there is so much governmental support available.

I thought I would throw this in here, for people who live in Mass. NED offers salvaged building materials from old homes, which can be reused in new or existing structures. A cool way to reuse materials and also add style to your home.

I think this non-profit is pretty cool. They have drastically improved the lives of African women who used to risk their lives and waste many days looking for firewood or burning feces to cook, and so has the Aid For Africa, http://www.aidforafrica.org/member-charities/solar-cookers-international/ Solar cookers could also be built into the side of a home and used indoors! I am thinking of maybe getting or building one for my home to reduce our use of propane. We are mainly solar-powered but we have a gas range and a back up generator that run on propane and I really dislike that. This solar cooker could really help us out though there is a lot that it can't do. I still think it is interesting and worth looking into. Perhaps it is something that more of us could use.

This is such a cool website that is packed with information about how to make choices in our every day lives that effect our environment in positive ways. There is a section called "The Card" that leads you to some links to print out a free card that is packed full of great information about buying choices and transportation etc. and it is easy to use when you are out and about. Most of the tips do not involve large expenditures, they are very simple and easy to implement. I like this site because it provides information about how everyone can make simple, inexpensive positive changes.

This a sort of cool site, that gives great video demos of new green apps, for our devices. I especially like the GasHog app, since I drive an old truck. Also interesting apps on how to find local farmers markets in your area.

This is a very cool site, that focuses on Sustainable Design. Great stories and photos of amazing projects from around the world, that convert old buildings into new living spaces, new home designs using interesting materials (check out the article of Love Nests) and also articles on sustainable building designs for the future.

This is a cool e-business, which make tons of products for your home or business, out of recycled or upcycled materials; such as old bottles, plastic, metal, bikes, railroad spikes, etc etc. Very cool way to support reusing material waste.

A really cool video of how Denmark, one of Scandinavia, and Europe's smallest countries is making the best of a trashy situation. On site visits give excellent insight into Denmark's power producing, rubbish incineration program.

Modern buildings with floor-to-ceiling windows give spectacular views, but they require a lot of energy to cool. Doris Kim Sung works with thermo-bimetals, smart materials that act more like human skin, dynamically and responsively, and can shade a room from sun and self-ventilate.

This is googles somewhat marketing driven document on the efficiencies of using cloud computing. I would emphasize that the most valid aspect of this analysis is for small businesses. Small business will rarely use the "full" potential computing power of local servers, but even during idle time that server requires power and cooling capacity.

A cool look into how wind power works - a snap shot

Ultimate Green Buildings

Great website. Thanks for sharing!

Biotecture at its best! Green Buildings which can be constructed in any part of the world and designed to meet and exceed existing building codes. Earthships provide electricity, potable water, contained sewage treatment and sustainable food production for every building.