Sage Lenier is a recognized leader in climate action, shaping conversations at the intersection of policy, climate economics, education, and systems change. Named a TIME Next Generation Leader, her work challenges outdated models in favor of advancing a vision for what a better world could look like.

While an undergraduate at UC Berkeley, Sage designed and taught the record-breaking course Solutions for a Sustainable & Just Future, which has enrolled over 2,250 students. She later founded Sustainable & Just Future to accelerate the adoption of climate solutions, preparing young people to lead in a rapidly changing world.

Her expertise spans the circular economy, decarbonization, climate finance, food systems, sustainable development, and more. A sought-after speaker and strategist, her work has been featured in The New York Times, Forbes, The World Economic Forum, and Teen Vogue, and has brought her to address conferences, universities, and organizations around the world.

Sage is based in New York City. For inquiries, please fill out the contact form.