Given the oceans’ massive heat-storage capacity, determining how much of the warming remains at the surface over the course of decades is a very difficult task. Though the challenge is beginning to be appreciated, current projections of the dreaded two-degree warming have yet to take into account variable ocean cycles.
海洋有巨大的储热能力，这意味着测量在几十年的跨度内有多少变暖程度留在地表是一个非常困难的任务。尽管这一挑战开始得到承认，但目前对升温两度的生死线的预测仍没有考虑海洋循环这一变量。