January 2017

I receive a number of requests for additional instruction from former students who have taken one class or another. I decided to combine my tutorials for water and ecosystem analysis in ArcGIS into a single book on LeanPub, which allows for work in progress publications, making it easy for me to combine some of my


In December 2016, after the Trump administration was elected, but before they took office, I helped start a group of volunteers working to protect climate data from deletion or tampering under the Trump Administration. While it seemed impossible to think they could delete the data at first, after learning about the destruction of data under