John Vidal considers the future of food at The Guardian:
By 2050 there will be another 2.5 billion people on the planet. How to feed them? Science’s answer: a diet of algae, insects and meat grown in a lab.
Those three are staples of nearly every sci-fi diet—which would normally make me think twice about reading the rest of the article—but Vidal also looks beyond the clichés, profiling advanced selective breeding and desert farming with with salt water.