The climate chasm between the world’s carbon-guzzling rich and the heat-vulnerable poor forms a symbolic shape when plotted on a graph. Climate-heating greenhouse gas emissions are so heavily concentrated among a rich minority that the image resembles one of those old-fashioned broad-bowled, saucer-shaped glasses beloved of the gilded age: a champagne coupe.

Do normal people know what a champagne coupe is? I had to look it up.