A world water crisis threatens the whole world.

Orange: areas where the lack of water is due to temporary pbm of resources.

Red: areas where water is going to be very rare

Brown: critic situation because of lack of investment

Mark Tran

Africa heads for 'hydrological suicide' as land deals hand water resources to foreign firms, threatening environmental disaster

Matt McGrath

Scientists say the notoriously dry continent of Africa is sitting on a vast reservoir of groundwater.

They argue that the total volume of water in aquifers underground is 100 times the amount found on the surface.

Megan Rowling

Water must be used more efficiently to meet rising food demand from a growing population amid climate-change pressures, experts say.

JOANNA M. FOSTER

USGS Multiple Depth Well Locations 2011

Map of completed and planned multiple-depth well sites in the San Diego Hydrogeology project.

Map of reservoirs in San Diego

Map of watersheds in the San Diego region

This map shows how water gets to San Diego from various sources near San Diego, and how electricity is involved in that process. Around the map via a chart, text, and graphs there is an explanation in more detail how water gets to San Diego, and how electricity and water are related through comparing information such as usage and conservation.

Map of the Colorado River Basin