Here is a video describing how you could use sea water to grow food in the desert. This should be a very economic way to solve at least partly the need for more food in some parts of the world.
You can easily construct DIY solar heaters. In this video you will find many fresh ideas for your future homemade solar heater. To understand better what it is all about it highly recommended that you will first look the next video before seeing this video. That way you will better understand the basic thinking and …
This is very interesting video. How to lower the cost of solar heater to the minimum. This video gives the idea and one can develop his own version of the heater based on these principles.
In this video you will learn about the ecological problems with Sea Water Desalination. Can the engineers find an acceptable solution to these problems?
Turning Sea Water Into Fresh Water is in principle a simple process. However the high energy needed for the process is a limiting factor. Also the high volumes of water processed will result in some ecological problems. This video will tell you about the latest ideas of turning Sea Water Into Fresh Water Without Pollution.
There are already several completed projects for seawater desalination in various countries and many new projects are under way. This will change the life in many places of the world with the lack of water potable.