Flares are mostly used during emergencies, so we can understand why their environmental characteristics have always taken a backseat to their effectiveness. Until now, that is. A police officer from California has invented a new flare that doesn't emit toxic fumes (usually inhaled by rescue workers), doesn't leave poisonous chemicals on the ground and isn't a fire hazard; the new eco-flare is called the PowerFlare Electronic Beacon, it's about as big as a hockey puck, uses LEDs and can withstand being run over by a truck. Many models are even rechargeable. We think that it is an excellent invention and we encourage any of our readers that work for emergency services to inform decision-makers at their workplace about them.