comparing the paper, which was published in Natural Science and your posted list of "predatory journals".... I don't see your point. Natural Science is a well respected, peer reviewed journal and certainly not on your list. Now to be honest, I enjoy a good debate about scientific matters.... and do understand your points, but your trying to assert that "no wonder it wasn't published in a reputable journal" is off base. Yes the USGS does reputable science, but then again so do many other scientific organizations, and often they reach differing conclusions. Calling research published in a reputable jounal "pseudoscience" begins to go from a debate over the science towards a rhetorical attempt to shout down those who you disagree with.