It's an easy online request that could deliver a fatal blow to fossil fuel companies that are subsidized by the UK government.

Fashion designer Vivienne Westwood is an outspoken environmentalist who has long used her fame and runway exposure to push climate change into the public eye. Now Westwood has another clear message. She wants residents of Britain to switch to renewable energy, in a nationwide effort to deliver a “fatal blow” to fossil fuel companies, “most of whom are anti-environment and anti-life.”

To her credit, Westwood walks the talk. Business Green reports that she has transitioned “the majority of her fashion premises within the UK to operate on green electricity and gas after partnering with Ecotricity, and plans to be entirely supplied by the renewable energy provider by 2018.”

Westwood’s dream is to see 50 percent of Britain powered by renewables as quickly as possible. According to Ecotricity’s founder, Dale Vince: