Green carpet looks: Celebs who champion sustainable fashion

Joaquin Phoenix is shaping up to be a sustainability style icon, as the actor rewore his Stella McCartney tuxedo and bow tie for the sixth time while appearing at the 2021 Oscars. He donned the black one-button tux to present the award for Best Actor, and he paired his look with classic black Converse sneakers. Fans were quick to point out that Phoenix had worn the same oufit not only to last year's Academy Awards, but also to the 2020 Golden Globes, Critics Choice Awards, SAG Awards, and BAFTAs—and all in the name of reducing waste and embracing sustainable fashion.

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Emma Watson - Watson is one of the biggest champions of ethical fashion, and in 2015, she signed up for the Green Carpet Challenge, where she agreed that every single piece she wore on the red carpet would be sustainable, including this 2017 Emilia Wickstead gown, which was created from end-of-line fabric.

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Emma Watson - Watson even created an Instagram account, The Press Tour, where she documents her sustainable looks, including iconic pieces like her 2016 Calvin Klein Met Gala dress made out of a unique yarn engineered from used plastic bottles.

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Emma Watson - Her black chiffon and silk Riccardo Tisci dress worn while promoting 'Beauty and the Beast' is made of Eco-Age certified organic materials, and it was paired with faux-leather heels.

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Miley Cyrus - A proud vegan and cruelty-free ambassador, the pop singer chose to wear Stella McCartney, one of the pioneers in sustainable fashion, to the 2018 Met Gala.

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Rooney Mara - Both Mara sisters are huge vegan-fashion activists. In 2018, Rooney and her best friend launched a vegan fashion label, Hiraeth, which was inspired by her love for high-quality designs but disapproval of the high-fashion industry's cruelty.

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Anne Hathaway - In 2017, Hathaway announced, via her stylist’s Instagram, that she would be wearing only sustainable fashion for the press tour for her film, 'Colossal.' Among those outfits were a 2016 Armani Privé gown (pictured) and a US$20 dress she bought at a flea market.

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Olivia Wilde - Wilde co-founded the organization Conscious Commerce who partnered with H&M in 2016 to launch its Conscious Exclusive collection. In an interview with Mashable, she explained that "conscious clothing" is as simple as having more knowledge of how something was made, who and what were used to make it, and what you can do to be less wasteful when you’re finished with it.

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Paris Jackson - Like Cyrus, Jackson also attended the 2018 Met Gala in a vegan and sustainable gown by Stella McCartney. She tweeted, "I have no doubt that all high end fashion brands will soon switch over to no-fur and anti animal cruelty, as that seems to be the pattern here."

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Cameron Diaz - The actress wore a shimmering sustainable Stella McCartney dress at the 2012 Met Ball.

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Livia Firth - Colin Firth’s wife, better known as "the Queen of the Green Carpet," started both the brand Eco Age and the Green Carpet Challenge. In 2010, she walked the awards season red carpets in sustainable gowns, including an upcycled wedding dress at the Golden Globes!

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jennifer lawrence -

Jewelry company Chopard teamed up with Livia Firth for their Sustainable Luxury Project, and this young actress wore one of their necklaces to the 2016 Oscars.

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Serena Williams - Perhaps the most stylish tennis player out there, Williams launched her first independent clothing line in 2018, all of which is vegan and eco-minded.

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Emily Blunt and John Krasinski - As if they weren't couple goals already, the pair wore sustainable outfits to the 2013 Met Ball, Blunt in a black Carolina Herrera made with certified vintage Italian fabric, and Krasinski in a Tom Ford tuxedo made with eco-friendly and European-spun fabric.

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Meryl Streep - The legendary actress wore a shimmering gold Lanvin gown made from eco-certified fabric to accept her Oscar in 2012.

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Michelle Obama - One of the few first ladies that wore dresses more than once, Michelle Obama sported repeats and vintage on several occasions, and one of her favorite designers is the eco-friendly Zero + Maria Cornejo dress (pictured).

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Sophie Turner - The actress wore a sustainable Galvan London gown at the 2016 Oscars as part of Suzy Cameron's Red Carpet Green Dress Initiative.

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Bradley Cooper - At the 2013 Golden Globes, Cooper rolled up in a Tom Ford tuxedo, made from Oekotex-certified, low environmental impact, European-spun wool.

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Margot Robbie - Robbie's white strapless dress with cutouts, at the 2016 Met Gala, was made from a silk fabric woven in Italy, lined with organic silk, and featured zippers made from recycled materials.

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Viola Davis - The actress wore a gown by Giorgio Armani, made from recycled soda cans at the 2012 BAFTAs.

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Pharrell Williams - Fashion-forward in every sense of the word, Pharrell is the creative director of an eco-friendly fabric company called Bionic Yarn, which creates threads and fabrics from recycled plastic bottles. He's also co-owner of the denim line RAW for the Oceans, turning plastic taken from the world's oceans into apparel.

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Gisele Bündchen - The model wore a pewter embroidered cutout gown by Stella McCartney for the Green Carpet Challenge at the 2017 Met Gala. It's crafted from certified organic silk and features glass bead embroidery all over.

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Gisele Bündchen - Again, at the 2018 Met Gala, Bündchen wore an eco-friendly look by Versace made with organic silk and recycled plastic.

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Natalie Portman - Another celebrity vegan, Portman prefers ethical gowns on the red carpet, and she once asked Dior to custom-make her vegan shoes for her Miss Dior perfume campaign. Even her wedding ring is made from certified conflict-free pave diamonds, on a band of recycled platinum!

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Marion Cotillard - The actress looked stunning at the Cannes Film Festival in 2013, wearing earrings from Chopard's Green Carpet Collection, made from Fairmined gold.

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Javier Bardem - The actor was looking sharp at the 'Skyfall' premiere, wearing a Gucci made-to-order three-piece tuxedo made from 100% organic wool with recycled satin lapel and trim detail, and a recycled satin bow tie.

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Lily Cole - The young English model and actress is also co-founder of an ethical knitwear company called The North Circular, which employs local senior women and uses wool sheared from rescued sheep. Cole wore a recycled plastic bottle dress by Vivienne Westwood to the 2016 Oscars as part of Suzy Cameron's Red Carpet Green Dress initiative.

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Liberty Ross - The English model and actress took her wedding dress for another spin at the Vanity Fair Oscar Party in 2016.

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Gwyneth Paltrow - The gluten-free queen has long been an advocate for the health of our bodies and our planet. Her website, Goop, paired up with designer Amour Vert in 2014 to create and sell a line of shirts made from silk, low-impact dyes, and wood-pulp fibers.

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Will.I.Am - Before he was a Black Eyed Pea, Will.I.Am was a student at the Los Angeles Fashion Institute of Design. In 2012, the artist integrated his passion for fashion with his dedication to the planet when he partnered with Coca-Cola to create his Ekocycle clothing line made from recycled plastic bottles.

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Meghan Markle - Meghan Markle is a certifiable eco-queen, and though she won't be seen on many red carpets anymore, she was spotted wearing three sustainable designer labels just during the final leg of her Australia tour, including a pair of Veja V-10 sneakers by an Australian label whose materials are vegan, organically sourced, and certified fair-trade.

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Meghan Markle - In another occasion in Australia, Meghan Markle wore a maxi dress from the American label Reformation, who are widely known for putting sustainability first and dedicating their time to minimizing waste, water, and energy footprints.

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Cate Blanchett - The actress wore glittering earrings from Chopard's Green Carpet Collection, made from Fairmined gold, at the 2014 Golden Globes.

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Michael Fassbender - From Giorgio Armani tuxedos made with ethical wool to his seeming favorite sustainable Oekotex-certified Tom Ford tuxedos at the 2016 awards shows, Fassbender loves his sustainable suits.

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Nicole Kidman - At the 2012 Derby Day in Melbourne, the actress showed up in a white L'Wren Scott dress, made from organic silk and end-of-line British lace.

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SZA - In 2018, SZA launched a sustainable streetwear line with Champion. She wears it loud and proud, including a hoodie that says "Sustainability Gang" and T-shirts that say, "Puck Flastic" next to pictures of seahorses and whales.

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Alicia Silverstone -

A prominent vegan since 1998, the 'Clueless' star is an advocate for eco-friendly shopping. In an interview with Vogue, Silverstone explained that she shops by looking through used clothes first. Then, if she can’t find it she’ll look for eco-friendly materials.

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Joaquin Phoenix -

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