Actress and Co-Founder of The Honest Company, Jessica Alba is the newest global ambassador for Earth Hour, the world’s largest mass participation event that has become the iconic symbol of people’s commitment to protect the planet.Earth Hour will take place on Saturday, March 23 2013 at 8:30PM.Alba along with the other co-founders of eco-friendly family brand The Honest Company, Christopher Gavigan, Sean Kane and Brian Lee, are lending their support to the cause through a fun ‘˜I Will If You Will’ challenge, in line with the company’s focus on promoting health and sustainability.“Christopher, Sean, Brian and I, founders of The Honest Company, will let our kids dress the whole Honest team, including us, for work for one day if 10,000 people commit to switch to using non-toxic products in their home,‘ Alba said.As global ambassador, Alba is also encouraging those who accept The Honest Company challenge to participate in Earth Hour’s monumental lights off event on Saturday, March 23 at 8:30PM.“The choices we all make in our daily lives can have a massive difference, not only to our children, but also to the very planet on which we live. I hope you’ll accept the Honest challenge and help us take the mission of Earth Hour, beyond the hour,‘ she said.Alba joins a long list of celebrity eco-advocates who have taken part in the I Will If You Will campaign, including international supermodel Miranda Kerr, actress Isabel Lucas and Asia’s Next Top Model host Nadya Hutagalung."Earth Hour is about the power of an interconnected global community coming together to drive real action for the sustainable future of our planet. It’s an honor to have Jessica and The Honest Company founders step up to this pivotal role, inspiring their fans and colleagues to join the global community,‘ said Andy Ridley, CEO and Co-Founder of Earth Hour.Christopher Gavigan says he hopes the challenge will help parents make better choices for their families and for the planet. “I hope that by challenging parents to commit to buying non-toxic and eco-friendly products, they can inspire their own friends, family and colleagues to make a commitment to positively impact our planet,‘ he said. “It’s important to consider where our products come from, what’s in them and the impact they have on the environment - before they reach our shelves, during their time in our homes and after we’re done with them. I believe Earth Hour is a movement that empowers people to make a difference, and I’m excited to be a part of it.‘Earth Hour, which was co-founded by WWF in 2007, has grown from a one-city initiative to a 7,001-city/town global movement. Last year it reached an estimated 2 billion people in 152 countries and territories across all seven continents.