The carbometer is filled with carbon chips at the beginning of the game. It indicates the “world temperature”, but also serves as a source of income from black factories: If you take your income from the carbometer, the temperature rises and the climate enters different phases, represented by different “hotter” colours. The blue section represents a relatively safe climate and the damages resulting from greenhouse cards are relatively small, however, costs increase more in the yellow, orange and red sections. After each player’s turn, some new carbon chips are put on the carbometer. This climate recovery is a simplified version of a carbon sink: Since a part of man-made emissions of carbon dioxide are stored in the ocean or the vegetation, they do not totally account for temperature rise. The strength of the recovery is printed on the carbometer.