Environmentalist Stella McCartney was center stage this week as she launched her Green Carpet Collection at the Royal Institution of Great Britain in Mayfair. Co-hosted by BFC chairman Natalie Massenet, Anna Wintour and GCC founder Livia Firth — who launched last year’s event — the evening gave McCartney the chance to unveil four ball gowns made of left-over fabric from McCartney’s studio; a range of shoes and accessories made from sustainably recycled materials; and  a collection created from a brand-new organic cady that McCartney has developed.

Vogue writes:

“This is a fabric that I am definitely going to incorporate into my own collection,” she told us at the event. “I’ve been coming away from fittings over the last couple of weeks thinking ‘Wow’ - these are all recycled materials. In the fashion industry they burn all these thousands of metres of fabrics, which to me is crazy, so I’m recycling it.”

Stella McCartney has a long history of walking her talk on the subject of sustainability. The Fashion Globe writes that all Stella McCartney stores, offices and studios in the UK are powered by wind energy. 45% of McCartney’s total operations are run on 100% renewable energy.