Politics (from Greek: πολιτικά, translit. Politiká, meaning "affairs of the cities") is the process of making decisions that apply to members of a group.
Factions among yourselves; preferring such To offices and honors, as ne'er read The elements of saving policy; But deeply skilled in all the principles That usher to destruction.
Philip Massinger, The Bondman, Act I, scene 3, line
The EU is dedicated to reducing emissions associated with air transport. The objective applies equally to rotorcraft as to aeroplanes, so first-time measurements and models of helicopter flue gas emissions are of fundamental importance to the efforts.