In January 2014, Blanchett took part in the Green Carpet Challenge, an initiative to raise the public profile of sustainable fashion, founded by Livia Firth of Eco-Age. In September 2020, as part of her role as Jury President of the 77th Venice International Film Festival, Blanchett vowed that during the festival she would only wear outfits that she had previously worn at public events in an effort to highlight the issue of sustainability in the fashion industry. In October of the same year, Blanchett was appointed by Prince William, Duke of Cambridge as a council member for the ‘’Earthshot Prize’’, which provides 50 environmental pioneers with the funds needed to further their work in tackling major problems impacting the environment.