Which major film production was the first to hire a dedicated 'Environmental Steward' role and implement a comprehensive carbon tracking system that later became an industry standard?

The film and television industry has been making significant strides toward sustainability in recent years. From carbon-neutral productions to innovative waste reduction strategies, studios are finding creative ways to minimize their environmental impact. This trivia question explores one of the pioneering sustainability initiatives that has transformed how major productions approach environmental responsibility. Test your knowledge of eco-friendly practices in the entertainment world!

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Avatar (2009)
The Day After Tomorrow (2004)
An Inconvenient Truth (2006)
The Revenant (2015)