There is no energy crisis, it is all a question of matter.
Found this one recently at Koen Bunder's cradle-to-cradle blog Iobserve. This picture is really killing and thought-provoking when it comes to promoting solar on a large scale.
As the picture shows, the larger red square on the left shows an area of 254 km × 254 km of hot desert that, if covered with concentrating solar power plants, would provide electricity equivalent to the current annual electricity consumption of the whole world. The smaller square (110 km × 110 km) shows a corresponding area for the European Union (when it included 25 countries). (source: http://www.trec-uk.org.uk/csp.htm)