Toxic pheromone pollution. How can we combat that?” Charles Groh and I looked at each other. This was it. We’d finally arrived at the hard part. What had to be done. “The first step,” I said, “would be removing the factors that are causing the environmental disturbance.” “Remove petroleum products?” said the president. “And cell phones?” said the secretary of state. I nodded at both of them, then looked out at the faces around the table and on the screens.