On June 5th, UN World Environment Day, a celebrity-driven social media Call for Code Cause Flash once again asked the 24 million developers around the world to help solve issues related Climate Change.

Cause Flash celebrity participants include Céline Dion, Dave Matthews, Kevin Bacon, Margaret Cho, Lindsay Vonn, Don Cheadle, Kesha, Melissa Etheridge, Pentatonix, Perry Farrell, Sia, Rod Stewart, Annie Lennox, Jared Leto, Pierce Brosnan, Pitbull, Alejandro Sanz, Quincy Jones, Barbara Streisand, Cher, Carole King, and many more…