Which major film studio launched the first comprehensive 'green production' initiative that requires carbon footprint tracking for all of its film and TV productions?

Major film studios have been implementing various sustainability initiatives in recent years to reduce their environmental impact. From set recycling to carbon-neutral productions, the entertainment industry is working toward greener practices. This trivia question tests your knowledge of which major studio has made the most substantial commitment to environmental sustainability through their comprehensive program.

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Sony Pictures with their 'Green the Screen' program
NBCUniversal with their 'Sustainable Production Program'
Disney with their 'Environmental Stewardship' initiative
Warner Bros. with their 'Better Tomorrow' framework