Coincidently, I had a paper published in Science last week (coincidently using NASA facilities, but do note that I am not based in the US). Science allowed me t

Coincidently, I had a paper published in Science last week (coincidently using NASA facilities, but do note that I am not based in the US). Science allowed me to put a copy of the paper on the free-to-access preprint site, arxiv.org. This wasn't the final typeset and corrected version of the paper, but a version of the submitted proof. These authors could have done something similar, though there are some differences in practices between the different scientific sub-communities. In some subjects, virtually every paper is posted to arxiv.org. Earth sciences appears to be one of those subjects where they don't do that.