Politics (from Greek: πολιτικά, translit. Politiká, meaning "affairs of the cities") is the process of making decisions that apply to members of a group.
I can't help feeling wary when I hear anything said about the masses. First you take their faces from 'em by calling 'em the masses and then you accuse 'em of not having any faces.
J. B. Priestley in Saturn Over the Water (1961) ch. 2.
Aside from being a public health hazard, particles in the atmosphere affect climate. New data mining and analysis methods are shedding light on the role of one of the most important components, black carbon.