This map shows the surface area needed to power the world if we used solar power. Its part of the Land Art Generator Initiative, which brings together artists, architects and engineers to create land art instillations that generate clean energy. The figures are based on 2008 global power usage. I can't believe how little space is required! The largest square in the northern part of Africa, would be able to generate enough power to support Europe and North Africa together. Why are we not doing this??