"Sceptical arguments" refers to skeptical or doubtful reasoning or statements that challenge or question the truth, validity, or accuracy of something. Full definition
This consists of a PowerPoint that I wrote for key stage 4 or 5 on Descartes» sceptical arguments but also an essay plan I wrote for year 13 Philosophy students on the success of scepticism generally. (tes.com)
Not one of the 4 options is a typical conclusion from a sceptical argument. (realclimate.org)
In other words, this article is not about the science, but about the reporting of the science by Monbiot of the Guardian, and Connor of the Independent, who will cite any ad hoc comment by a scientist which counters a sceptical argument, as if the simple fact that it is uttered by a scientist demolished the sceptical argument. (climate-resistance.org)