Communication between Men and Women - getting ourselves listened to and understood
Local biological materials for filtration of grey water
The personal insight question that each of us needs to ask ourself.
The art of using unusual bits and pieces to do the job you need, without spending a lot of money in the process. This art form can transcend national boundaries and cultures.
Small scale domestic treatment of grey water, keeping it simple, using nature as a teacher and resource. On-going experiment, basic science but without collegial input so far.