Deadline team member Anthony D’Alessandro files this report:

EXCLUSIVE: Deadline has learned that Melissa Sun, VP of Stan Rosenfield and Associates, will be moving into a new position at the Sierra Club where she’ll be linking up the entertainment industry with the national environmental group. Her new role is the Sierra Club’s Senior Strategist for Entertainment Relations, based in Los Angeles. Sun is tasked with creating meaningful opportunities for celebrities to help Sierra Club protect clean air, water and open spaces. The group wants celebs to help pressure the Obama Administration to reject granting a permit for a 1,700-mile oil pipeline running from Canada to the Gulf of Mexico as well as push the Environmental Protection Agency to limit the standard on mercury emissions especially from coal plants. Sun was courted by the Sierra Club to launch its new entertainment branding and strategy initiative, according to Sierra Club Executive Director Michael Brune, who told Deadline: “Melissa caught our eye with her background, making her a person we could not do without. She understands how the entertainment industry operates and has a passion to find people who can help the Sierra Club in developing projects, campaigns and strategies.”

As Sun told Deadline, “I have always tried my best to follow a green lifestyle and I look at this great opportunity with Sierra Club as a way to give back to the environment. And if it doesn’t help reduce my personal carbon footprint, I don’t know what will.” Sun has worked with SRA since 2005 rising through the ranks from assistant to VP, handling such clients as Helen Mirren and Danny DeVito, after experience as a broadcast journalist at KNBC-TV and KSBW-TV in Northern California. SRA clients like DeVito have done Sierra Club PSAs, such as this anti-Global Warming campaign where the actor appeared with the cast of It’s Always Sunny In Philadelphia.