Crowd-sourced knowledge repository of restoring water cycles in arid regions?

[Gien]

Hi William,
David has just edited his main page with all the details. Go here:

OpenHack challenges wanted

We are searching for challenges for our hackathon in Luleå, Sweden. During 48h, teams of programmers and students will try to find solutions to humanitarian problems. To keep it simple for participants we try to keep the challenges well defined and structured. If you think that you have a suitable challenge, try to answer the following questions. Brief description of objective (Two sentences or less) Challenge and problem statement Main part of the document Background Please tell us about wh…