MWE glossaries

\documentclass{article}
\usepackage{tabularx}
\usepackage{array}
\usepackage[acronym,nogroupskip]{glossaries}
\newglossary[slg]{symbols}{slm}{sbl}{List of Symbols}
\makeglossaries

\newglossaryentry{degvi}{type=symbols,name=$\Delta E_{GP,i}$,
user1={MJ},sort=energie differenz grau verbrauch,
description={Differenz graue Energie und Verbrauch zu Produktion des betrachteten Systems}}

\newacronym{ipcc}{IPCC}{Intergovernmental Panel on Climate Change}

\newcolumntype{L}[1]{>{\raggedright\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{C}[1]{>{\centering\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{R}[1]{>{\raggedleft\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}

\newglossarystyle{tabx3col}{%
 % put the glossary in a longtable environment:
 \renewenvironment{theglossary}%
  {\begin{longtable}{L{0.2\textwidth}L{0.6\textwidth}R{0.2\textwidth}}}%
  {\end{longtable}}%
 % Set the table's header:
 \renewcommand*{\glossaryheader}{}%
 % No heading between groups:
  \renewcommand*{\glsgroupheading}[1]{}%
 % Main (level 0) entries displayed in a row:
  \renewcommand*{\glossaryentryfield}[5]{%
    \glstarget{##1}{\textbf{##2}}% Name
    & ##3% Description
    & ##5% Page list
    \\% end of row
  }%
 % Sub entries treated the same as level 0 entries:
 %\renewcommand*{\glossarysubentryfield}[6]{%
  %\glossaryentryfield{##2}{##3}{##5}{##6}}%
 %% Nothing between groups:
 %\renewcommand*{\glsgroupskip}{}%
}


\newglossarystyle{tabx4col}{%
 % put the glossary in a longtable environment:
 \renewenvironment{theglossary}%
  {\begin{longtable}{L{0.1\textwidth}L{0.1\textwidth}p{0.55\textwidth}R{0.2\textwidth}}}%
  {\end{longtable}}%
 % Set the table's header:
 \renewcommand*{\glossaryheader}{}%
 % No heading between groups:
  \renewcommand*{\glsgroupheading}[1]{}%
 % Main (level 0) entries displayed in a row:
  \renewcommand*{\glossaryentryfield}[5]{%
   \glstarget{\textbf{##1}}{\textbf{##2}}% Name
   & $[$\glsentryuseri{##1}$]$% Units
   & ##3% Description
   & ##5% Page list
    \\% end of row
  }%
 % Sub entries treated the same as level 0 entries:
 %\renewcommand*{\glossarysubentryfield}[6]{%
  %\glossaryentryfield{##2}{##3}{##5}{##6}}%
 %% Nothing between groups:
 %\renewcommand*{\glsgroupskip}{}%
}


\begin{document}

\gls{degvi}, \\\gls{ipcc}.

\printglossary[title=Abkürzungsverzeichnis,type=\acronymtype,style=tabx3col] %Print list of acronyms
\printglossary[title=Symbolverzeichnis,type=symbols,style=tabx4col] %Print list of symbols

\end{document}