When it was under construction it was more complex, with the text “Fair distribution of water” below the sign SOLIDHOLE. But www.solidhole.net is a site with only one message: Every person has the right to water supply for personal and domestic use. This is a black and white expression of simplicity that should be reflected in the logotype.
The black circle represents the Earth. The logotype doesn´t shout out “Fair distribution of water”, it´s rather what you are expected to answer when people ask what you have on your T-shirt.