Water: Our Thirsty World

Courtesy of Zinio and National Geographic, this month's magazine is available for free electronic download.

"Water: Our Thirsty World" is a single topic issue from National Geographic highlighting the global challenges facing our most essential natural resource.

It is available for free download starting on World Water Day, March 22, 2010, through April 2, 2010.

This interactive edition presents complete content from the print edition, plus a variety of additional interactive content.