NGO Founder | Advocate | Educator | TEDx Speaker | Change Maker | Eco-Warrior | Mentor | Author
Hannah Testa, Founder of Hannah4Change, has been an environmental activist her entire life—literally all 23 years of it. She began speaking up for the planet at age four and has spent her life protecting people, animals, and the environment through education, awareness, and policy work. She believes knowledge drives change and invites others to join her mission to protect our shared home.
Hannah Testa is a nationally recognized environmental advocate and the founder of Hannah4Change. For more than a decade, she has led campaigns focused on plastic pollution, climate action, and youth empowerment, reaching tens of thousands of people worldwide. Her leadership has earned major national recognition, including being named to Teen Vogue’s 21 Under 21 in 2020 and featured in PEOPLE Magazine’s “10 Girls Changing the World” the same year. Through education, policy advocacy, and grassroots organizing, Hannah continues to champion a more sustainable and just future.
By age ten, Hannah recognized plastic pollution as a crisis we can control. Since then, she has delivered presentations to more than 30,000 people worldwide and helped launch groundbreaking initiatives. She created Plastic Pollution Awareness Day in 2017 and 2018, reaching national audiences, and influenced Fulton County, Georgia’s decision to eliminate single-use plastics from government properties. In 2020, she helped introduce the federal Break Free From Plastic Pollution Act—the most comprehensive plastic and packaging bill ever proposed in the United States.
She is the author of Taking on the Plastics Crisis, a concise and inspiring call-to-action for youth to refuse single-use plastics and raise their voices for systemic change.
Hannah Testa is a nationally recognized environmental advocate and the founder of Hannah4Change. For more than a decade, she has led campaigns focused on plastic pollution, climate action, and youth empowerment, reaching tens of thousands of people worldwide. Her leadership has earned major national recognition, including being named to Teen Vogue’s 21 Under 21 in 2020 and featured in PEOPLE Magazine’s “10 Girls Changing the World” the same year. Through education, policy advocacy, and grassroots organizing, Hannah continues to champion a more sustainable and just future.
By age ten, Hannah recognized plastic pollution as a crisis we can control. Since then, she has delivered presentations to more than 30,000 people worldwide and helped launch groundbreaking initiatives. She created Plastic Pollution Awareness Day in 2017 and 2018, reaching national audiences, and influenced Fulton County, Georgia’s decision to eliminate single-use plastics from government properties. In 2020, she helped introduce the federal Break Free From Plastic Pollution Act—the most comprehensive plastic and packaging bill ever proposed in the United States.
She is the author of Taking on the Plastics Crisis, a concise and inspiring call-to-action for youth to refuse single-use plastics and raise their voices for systemic change.
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Hannah4Change is a project of Plastic Pollution Coalition, a fiscally sponsored project of Earth Island Institute,
a 501(c)3, non-profit organization, organized and existing under the laws of California (Federal Tax ID #94-2889684).














