No pun intended - and more justice, crime and overall drama than something about the environment. Not sure how much of the story is based on one individual or the truth, but the way it is told ... well sometimes it is tricky - especially when it comes to the character and what or how he (re)presents himself ... some may not like the way he conducts and what he does.
So while the (green) message is there, hopefully the main character is not too unlikable for the viewers to still root for the right thing (that is for the movie, story and beyond of course). Acting wise this is good and we are getting a text when the movie ends that reminds us what is important ... in case we lost focus during the quite tense and tension filled movie ...