A handful of celebrities chose to "go green" Sunday at the 2020 Oscars, wearing recycled looks on the red carpet.
"Joker" star Joaquin Phoenix accepted his best actor Oscar wearing the same custom Stella McCartney suit that he has worn the entire awards season.
When Phoenix accepted his Golden Globe award in January, wearing the Stella McCartney tux, he thanked the Hollywood Foreign Press Association for serving a vegan meal during the ceremony and "for recognizing and acknowledging the link between animal agriculture and climate change." He then pleaded with his fellow actors to do what they could to limit their carbon footprints.
Also at the Oscars, Jane Fonda, who presented the best picture award to "Parasite," wore a beaded red dress by Elie Saab Couture, the same gown she wore six years ago on the red carpet at the Cannes Film Festival.
Fonda accessorized the dress at the Oscars with the same red coat she's worn to her Fire Drill Fridays protests on Capitol Hill.
MORE: 2020 Oscars: See all the best red carpet looks of the nightThe actress said last November that the coat is the "last piece of clothing" she'll ever buy.
Director and actress Elizabeth Banks continued the recycled looks trend at the Vanity Fair Oscars afterparty.
Banks rewore a red Bagdley Mischka gown she first wore to the Vanity Fair party in 2004, she explained on Instagram.
MORE: Janelle Monáe, Sandra Oh, Scarlett Johansson and more sparkled in metallics at the 2020 Oscars"It’s gorgeous and it fits … so why not wear it again?!," she wrote, adding that she hoped to "bring global awareness to the importance of sustainability in fashion and consumerism as it relates to climate change, production & consumption, ocean pollution, labor & women."
Thrive founder Arianna Huffington also wore a repeat look to the Vanity Fair party. She tweeted that her black dress was the same one she wore to the party seven years ago.
The last major awards ceremony before this year's Oscars, the British Academy of Film and Television Arts (BAFTAs), asked attendees ahead of time to make "sustainable fashion choices" and avoid wearing new outfits for the occasion.
Among the attendees who heeded that call to action was Duchess Kate, who attended the ceremony with Prince William.
Kate wore a slightly re-fashioned gown by British label Alexander McQueen that she previously wore in 2012 during the Cambridges' tour around Southeast Asia and the South Pacific in honor of the queen's Diamond Jubilee.
A 2019 Resale Report released by ThredUp, a digital consignment company, claims that everyone buying one used item instead of new this year would save 5.7 billion pounds of carbon dioxide emissions.