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Is it possible for the sun to provide the only source of power for a complete water purification system in a portable bag? Until now we would not give the idea much thought. But why not? We make "sun tea" where you put tea bags in a container of water and place the container outside in the sun to naturally brew the tea.

This site features Puralytics CEO'S explanation of his nanotechnology-based photochemical water purification system. An detailed explanation is offered about how the Puralytics purification bags work. The future goals and endeavors of the company is also discussed.

Here is an article on trench composting I thought the group might enjoy. My wife and I have reduced our waste to about one small kitchen bag a week by composting our kitchen scraps.

Hi. That is a great idea. Saves the plant from drying out. I will do that for my garden. Funny I was reading about Africa a remote area where this happen. A university sent someone out here to help solve a issue for these people to have some kind of heat source like gas. Long story short you take all the food scraps throw them into a blender and dump in in a 50 gallon drum. Does this for a bout a week. Have another 50 gallon drum ready empty. This guy ran a gas line off the barrels into the house. It produce enough methane to cook and heat the house as long you keep dumping scraps into the barrel.