The issue focused on in this article is an associated paper "Relative contributions of temperature and hydrology to climate variability and change in the Colorado Plateau of the American Southwest, USA" by Florian Weimer and colleagues. It was published in 2013 in Geophysical Research Letters.


Image from Florian Weimer's paper

So there you have it. If you look at the science in this article, it's clear that this study has little to do with global warming. It's also clear that