Lettuce Is the Bottled Water of Produce

Another day, another story about what we should consume when confronted with a water-scarce future. On today's chopping block: Lettuce, should you eat it? Let us begin with this provocative statement: A head of iceberg contains the same amount of water as a bottle of Evian, it's wrapped in lots of plastic, and shipping it around the world is just as awful for the environment.