Cara is joined by Jo Ruxton, the co-founder and Director of Education of Plastic Oceans Foundation, a global network of charitable organizations focused on changing attitudes toward the use of plastics. They discuss the upcoming film, "A Plastic Ocean," which highlights the detrimental effect plastic refuse is having on our marine habitats, and because of that, on our own health and safety. They also talk about ways we can make a difference. Follow Jo: @joruxton.