In the current climate heating event, sealevel rise, unlike atmospheric temperature, is an indirect effect. Sealevel rise is the effect of a plethora of causes. These twin factors complicate, and make more uncertain, the prediction of sealevel rise. Since global heating began in the 20th century, in contrast with atmospheric temperature rise, sealevel rise, while constant, has been restricted to less than 0.1 metre. This “nothing to see here” situation, despite the rate being geologically rapid, has lulled the world into a false sense of security. New understandings of Antarctica in the past five years tell us that sealevel rise will most likely accelerate, in a stepped trajectory, unpredictably, and possibly soon. Catastrophic collapse of parts of West Antarctica, and sealevel rise of several metres in the next century are quite likely.
Kids’ Spoiler Alert: Santa’s home and job are at risk if the grownups keep acting like children.
Adult Spoiler Alert: be very afraid of kids acting like adults – they might do you out of a job.