Welcome to Geo42!

This site is a joint personal website for John and Tina Callahan, climate scientists at the University of Delaware. It includes the following:

  • Personal website for John A. Callahan
  • Personal website for Tina Callahan
  • Joint Blog (hopefully one day soon)
  • Links to more information on climate and weather

As this site is new (summer 2021), we’re still not exactly what we will post on this site, or how often. If we do start blogging, as planned, latest posts will be listed below.