\documentclass{beamer}

\usepackage{bookmark}

\usetheme{Darmstadt}

\title{Outside the Box Portfolio}
\author{Arnaud BASTIAN}
\date{}

\begin{document}
\maketitle

\begin{frame}{The great challenges of the $21^{st}$ century}
    



Through the portfolio, I will unfold the great challenges of the $21^{st}$ century,
all related to climate change considerations and the modern society. I will develop various related subjects, such as energy and transport.
More precisely, the subjects of energy in buildings, nuclear electricity production and transportation through the prism of airports and passports, will be developed.

\end{frame}

\begin{frame}
    \tableofcontents
\end{frame}

\include{energy}

\include{nuke}

\include{passports}

\include{conclusion}
\end{document}