汉克·葛林

William Henry Green II (born May 5, 1980), known as Hank Green, is an American YouTuber, science communicator, novelist, stand-up comedian, and entrepreneur. He produces the YouTube channel Vlogbrothers with his older brother, author John Green, and hosts the educational YouTube channels Crash Course and SciShow. He has advocated for and organized social activism, created and hosted a number of other YouTube channels and podcasts, released music albums, and has over 8 million followers on TikTok.

Hank and his brother John co-created VidCon, the world's largest conference about online videos, and the Project for Awesome, an annual online charity event, as well as the now-defunct conference NerdCon: Stories, focused on storytelling. He is the co-creator of The Lizzie Bennet Diaries (2012–2013), an adaptation of Pride and Prejudice in the style of video blogs that was the first web series to win an Emmy. He is also the co-founder of merchandise company DFTBA Records, crowdfunding platform Subbable (acquired by Patreon), game company DFTBA Games, and online video production company Pemberley Digital, which produces video blog adaptations of classic novels in the public domain. Green is the founder of the environmental technology blog EcoGeek, which evolved into Complexly, an online video and audio production company of which he was the CEO until late 2023. Green also hosts the podcasts Dear Hank & John and Delete This with his brother and wife respectively, along with the podcast SciShow Tangents.

Green's debut novel, An Absolutely Remarkable Thing, was published on September 25, 2018; its sequel A Beautifully Foolish Endeavor was published on July 7, 2020. Both novels debuted as New York Times Best Sellers. In response to being diagnosed and treated for Hodgkin lymphoma in 2023, Green stepped down as CEO of his companies. While recovering, Green began performing stand-up about his experience. His comedy special titled Pissing Out Cancer was released on the streaming service Dropout on June 21, 2024. In July 2025, Green partnered with Honey B Games to launch Focus Friend, a productivity app which allows users to set a timer that temporarily blocks other apps. The app reached number one on Apple's App Store charts for free apps.

Early life and career

William Henry Green II was born on May 5, 1980, to Mike and Sydney Green in Birmingham, Alabama, but his family soon moved to Orlando, Florida, where he was raised. Green is of Irish ancestry. He graduated from Winter Park High School in 1998. He then earned a B.S. in biochemistry from Eckerd College in 2002 and a M.S. in environmental studies from the University of Montana. His master's thesis was titled "Of Both Worlds: How the Personal Computer and the Environmental Movement Change Everything".

Throughout high school and college, Green created and designed websites for himself and local clients. His first project, the "Mars Exploration Page", in 1994, experienced minor success on the heels of the Mars Pathfinder Mission. A later website, IHateI4.com, which was about Green's dislike for Interstate 4, a widely unpopular highway among Floridians, brought press from local news channels and the Orlando Sentinel. Green continued as a web developer after moving to Montana for graduate school, focusing on developing websites for educational institutions (including the University of Montana) and environmental nonprofit organizations.

While in graduate school, Green created "EcoGeek", a blog focusing on technological advancements that benefit the environment. Starting as a class project, EcoGeek evolved into a major environmental publication. It caught the attention of Time, where it was described as "porn for hardcore science, tech and enviro freaks". Writing about environmental issues, Green has been published on numerous environmental blogs, including Treehugger.com, Yahoo! Green, The National Geographic Green Guide, Scientific American, The Weather Channel, Planet Green, NPR, and in The New York Times. During the mid-2000s, Green wrote regularly for Mental Floss and co-authored one of their books, Mental Floss: Scatterbrained.

YouTube channels

Vlogbrothers

From January 1 to December 31, 2007, Hank Green and his brother John ran a video blog project titled Brotherhood 2.0. The original project ran every weekday for the entire year, with the premise that the brothers would cease all text-based ("textual") communication for the year and instead converse by daily video blogs, made available to the public via their YouTube channel Vlogbrothers and on their website.

In 2008, John and Hank first met up with their fans, known as "Nerdfighters". The first gathering was a last-minute decision, but despite the three-day notice, nearly 100 people attended. In August, John and Hank were invited to the Google office in Chicago to talk about the project. That same day, they filled the Harold Washington Library with about 400 young adults. After John's book tour for his third novel, Paper Towns, the brothers went on a national tour in November. With events in 17 different cities, they met Nerdfighters at local libraries and community centers. During this tour, Hank released his first album of Nerdfighter-themed songs, titled So Jokes.