Geology. A PhD is unnecessary unless you want to work in academia (bleh) or for the USGS, which is prestigious but hard to get into even with a PhD. So I’ve heard. There likely would be no appreciable salary increase and in fact would fall into the “overqualified” trap. Master’s is the standard level employers desire.

I’m unemployed and bummed about it and looking at the PhD because having a project like that sounds awesome.