Cloud seeding: The expensive business of rain in the desert
But in recent years the number of flights has been increasing – last year more than 200 missions took place at a cost of hundreds of thousands of dollars.
The hope is that by increasing rainfall, cloud seeding can help to replenish the country’s diminishing water supplies. But is it a cost effective way of doing it?
BBC’s Howard Johnson went on a cloud seeding flight to find out. Click below to view the BBC report on cloud seeding in the desert.