Las Vegas is world-renowned as a city of fantasy, flaunting its reputation for excess.
It appears a green oasis of refrigerated plenty, set in a blazing desert.
But environmentalists warn water supplies could run dry within the next 50 years; while urban sprawl is out of control and development is encroaching on protected areas.
No matter how you arrive in Las Vegas, by car or plane, you are immediately struck by the stark contrast of a lush city against a barren desert that stretches in all directions.
Yet, this is a region in the grip of one of the worst droughts on record.
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Las Vegas is world-renowned as a city of fantasy, flaunting its reputation for excess.
