[Tex/LaTex] Remove paragraph indent from abstract in article class

Question

I'm just getting started with LaTeX to write scientific papers. I don't want to have paragraph indentation, so I've used the parskip package to deal with that. However, that doesn't seem to deal with the indentation of the first line of the abstract. I've tried manually setting parident but that doesn't seem to work either.

Is there a special way of setting the paragraph indent within the abstract section?

\documentclass{article}
\usepackage{parskip}

\begin{document}

\title{What are the fundamental gaps in scientific knowledge?}
\author{Robin Wilson}

\maketitle

\begin{abstract}
Recent reports by the global environmental ...
\end{abstract}

\section{Introduction}
Here is the text of your introduction.

And another paragraph here.

\end{document}

Answer 1

The easiest way is to insert \noindent:

\begin{abstract}
\noindent Recent reports ...
\end{abstract}

The reason is, that article uses a quotation environment for the abstract, and quotation uses paragraph indentation in contrary to quote. So, you coud redefine the abstract environment to use quote, but it's easier just to insert \noindent. If needed, you could additionally set \parindent to 0pt inside the abstract.