Hannah Testa is a sustainability advocate, international speaker, and founder of Hannah4Change, an organization dedicated to fighting issues that harm the planet. She has partnered with politicians to successfully approve legislation to protect the Earth's oceans by limiting single-use plastics like straws, bags, and utensils. Most notably, she has worked as part of a global coalition of NGOs to influence Starbucks to develop a more sustainable coffee cup, and she partnered with Kashi to co-create healthy, organic, non-GMO cereals and snacks for kids. She has been featured in Parade magazine, Teen Vogue, Goop, USA Today, and has appeared on CNN and Good Morning America.