New AGU LaTeX template for all AGU journals

In November 2016, AGU released a new AGUJournal.cls LaTeX template that replaces the fifteen-year old agutex.cls.

The syntax is much condensed and improved, and only requires a single command to select your journal. I mention this because I still see submissions using the 2001 version agutex.cls, and the new version has much improved PDF generation and formatting for reviewers and the editor.

Prereqs for new AGU template

sudo apt install texlive-fonts-extra

This fixes error

File ‘newtxtext.sty’ not found