Julia and other greens around the world believe that sacrifices must be made in order to control the climate. This is an age old idea which was used extensively by the Aztecs. It was well known at the time that global warming was ubiquitous and caused by a lack of human blood being spilled.
Politicians now take a more subtle approach to human sacrifice. By raising energy prices, they can freeze people to death silently in their homes, which has the same effect of appeasing the CO2 gods.