How To Save A World

A planet-killing asteroid is on its way to Alarria, and there are three plans to save the day: 1) Build a giant laser to blast it, 2) Raise a powerful shield to deflect it, and 3) undertake a massive wildlife evacuation to the nearby moon. You lead one of the emergency response teams responsible for deciding what blend of the three projects will work the best. Will you be the one to figure out how to save a world?