As filmmakers we tell stories that resonate emotionally with audiences. However the process of making and showing those stories has an impact on the environment as well as the emotions of the audience.
Below are some organisations dedicated to reducing the environmental impact of making and showing films:
The U.K. authority on environmental sustainability for Film and TV: https://wearealbert.org
Green Film Shooting
The European centre for sustainability in the media world: http://greenfilmshooting.net/blog/en/