A National Geographic film crew is working in the Phoenix area on a documentary based on Jared Diamond's best-selling book, "Collapse." The book examines the factors that led to the collapse of cities and civilizations through history.
AZGS geologist Todd Shipman took the crew to film Earth fissures in the greater Phoenix basin last week as indicators of basin subsidence resulting from overpumping of groundwater.
Diamond lists water management as one of 8 factors that historically led to collapse of societies.