The Ethiopian Airline crash on the 10th March 2019 sent shock waves through the aviation industry. It was particularly shocking as the death of a delegation of climate experts expected at the hugely anticipated Nairobi conference gave the tragedy even greater media coverage. Delegates of environmental organisations from all over the world, aid workers and activists were aboard, from all over the world. The “black box” was recovered and shockingly it showed that the aircraft’s automatic control system had ordered the dive despite the pilot pulling it up. The dialogue with the control tower shows that whatever the pilot and copilot did to counter the downward pitch, the plane simply would not respond. What had gone wrong?