Inside the greenhouses, a cool, humid oasis of plants and vegetables flourishes. Fleshy fruits, salad leaves and velvety aubergines would all normally require large volumes of water to grow.

Save guides, add subjects and pick up where you left off with your BBC account. Though it may appear as one of the most inhospitable places in the world, in the middle of a desert, you might find ...

Artificial Oasis Recycles Water to Restore Colorado River Delta An innovative water recycling project called Las Arenitas is ...