Computationally Efficient Emulators for Earth System Models I: Producing Internal Variability
The purpose of the paper is described. Much valuable space is wasted repeating background material that is already in the introduction. Too much detail is gone into; yet, bafflingly, the primary result of the paper is omitted. The passive voice is used to do all of this. By the end of it, readers still aren't sure if they actually want to read the paper.