Hank Green, science content creator, joins the Arbor Day Foundation in the seventh episode of its podcast, "Unearthing Optimism." Hank Green’s engaging educational content has earned him a combined social media following of over 20 million people. He is also a novelist, CEO of online educational media company Complexly, and co-founder of Good Store.
In a conversation with Arbor Day Foundation CEO and host Dan Lambe, Green explores the significance of the Internet in the environmental movement and what meaningful engagement can look like.
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Arbor Day Foundation
Published Jul 20, 2026 5am EDT / 2am PDT / 10am BST / 11am CEST