GI-sturm.sty

% --- Identification part ---
\ProvidesPackage{GI-sturm}

% --- Declaration of options ---
\DeclareOption{german}{%
  \PassOptionsToPackage{german}{babel}
  \EinheitName{Geophysical Institute}
  \EinheitInfo{Snow Ice and Permafrost}
  \PersonName{Dr. Matthew Sturm}
  \PersonAdresse{
    2145 North Tanana Loop\\
    University of Alaska Fairbanks\\
    Fairbanks AK 99775}
  \PersonInfo{
    {\setlength{\tabcolsep}{0mm}
      \begin{tabular}{@{}l@{~}l@{}}
        Tel. direct       & +1-907-474 5257 \\
        Fax               & +1-907-474 7290 \\
        E-Mail            & msturm1@alaska.edu \\
        Web               & https://www.gi.alaska.edu/research/snow-ice-and-permafrost
    \end{tabular}
    }}
  \Ort{Fairbanks}
}

\DeclareOption{english}{%
  \PassOptionsToPackage{english}{babel}
  \EinheitName{Geophysical Institute}
  \EinheitInfo{Snow Ice and Permafrost}
  \PersonName{Dr. Matthew Sturm}
  \PersonAdresse{
    2145 North Tanana Loop\\
    University of Alaska Fairbanks\\
    Fairbanks AK 99775}
  \PersonInfo{
    {\setlength{\tabcolsep}{0mm}
      \begin{tabular}{@{}l@{~}l@{}}
        Tel. direct       & +1-907-474 5257 \\
        Fax               & +1-907-474 7290 \\
        E-Mail            & msturm1@alaska.edu \\
        Web               & https://www.gi.alaska.edu/research/snow-ice-and-permafrost
    \end{tabular}
    }}
  \Ort{Fairbanks}
}

% --- Execution of options ---
%\ExecuteOptions{german}   % set default
\ProcessOptions

% --- Package loading
\RequirePackage{babel}