When it’s high season on the Spanish tourist island of Mallorca, it’s not unusual to have up to 10 aircraft on the horizon at the same time. Exactly 2,014 arrivals and departures were scheduled at Palma’s airport last weekend — an average of one takeoff or landing every 90 seconds. During the summer months, this is the normal volume of air traffic for Mallorca. And this has vast consequences for the environment. (Also read: Eco-tourism focus of new Jharkhand policy; incentives for…