What did you spend your free time doing when you were a teenager? Most of us can’t say we were dedicating ourselves to solving some of the world’s greatest challenges, but that’s just what Ciara Judge, Émer Hickey and Sophie Healy-Thow – all 17 years old – set out to do when they entered the 2014 Google Science Fair with a cutting-edge approach to tackling global hunger through better agricultural productivity.
Their project, which won the grand prize among a field of 18 finalists, found that a naturally occurring strain of bacteria can prevent seeds from rotting in the soil before they have a chance to grow, a problem that is particularly prevalent in damp climates. In their experiment, seeds treated with the bacteria germinated about 50 percent faster, resulting in a 74 percent increase in cereal crop yields.