Explore our 2024-2026 NEOYCS Booklet to learn more about past summits!

2026 Keynote Speaker: Leah Thomas

2025 Keynote Speaker: Sage Lenier

Sage Lenier is a climate activist, public speaker, and nonprofit leader. She got her start teaching her own program at UC Berkeley, which broke records for largest-ever student-led class. She is the Founder & Executive Director of Sustainable and Just Future and was recently honored by TIME Magazine as a 2023 Next Generation Leader.

2024 Keynote Speaker: Xiye Bastida

Xiye Bastida is a climate justice activist based in New York City. She is an organizer with Fridays For Future and the co-founder of Re-Earth Initiative, an international youth-led organization that focuses on highlighting the intersectionality of the climate crisis. Bastida was born in Mexico and was raised as part of the Otomi-Toltec Indigenous community. For the first climate strike in March 2019, she mobilized 600 students from her school and has taken a citywide leadership role in organizing climate strikes. Bastida was the recipient of the 2018 UN Spirit Award and currently attends the University of Pennsylvania.