Pepsi's 'Cool Eco-School' campaign targets college students aged 18-25, promoting environmental awareness through a contest where schools compete to be the 'greenest' for a chance to win a concert and festival. The campaign utilizes social media platforms like Twitter, Facebook, and YouTube to engage participants and promote their initiatives, alongside a $25 million budget. Both brand awareness and social media integration are key goals, alongside improving Pepsi's environmental image and sales.