Sophia Kianni

Climate Activist & UN Advisor

Sophia Kianni is an Iranian American social entrepreneur and activist studying at Stanford University. She is the founder and executive director of Climate Cardinals, the world's largest youth-led climate nonprofit, with 10,000 volunteers in 80+ countries. She is the youngest United Nations advisor in US history.

"Language shouldn't be a barrier to Climate Action"

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  • Climate Change
  • Environment
  • Gen Z
  • Youth Activism
  • Sustainable Fashion
  • Environmental Justice


She presents in English and German.

How she presents

Sophia is an empowering, inspirational and passionate speaker who provides a comprehensive and moving presentation.

In Detail

Sophia has amassed a following of over 300,000 across social media platforms and her work has been featured in news outlets including The New York Times, CNN, Vogue, Business Insider, BBC, NPR, ELLE, The Guardian, NBC, and even on the front page of The Washington Post. She has written for news outlets such as TIME Magazine, The Washington Post, MTV News, Cosmopolitan, and Teen Vogue. She has been named VICE Media's youngest Human of the Year, a National Geographic Young Explorer, among Business Insider's Climate Action 30, one of Teen Vogue's 21 under 21, and a Forbes 30 under 30 honoree.


Sophia is a prolific storyteller who has spoken at universities across the world including Harvard, Stanford, Columbia, Yale, Oxford, Cambridge, and Princeton. She is available for speaking engagements on climate change, Gen Z, youth activism, sustainable fashion, environmental justice and everything in between.


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