Bill McKibben is an environmentalist and founder of Third Act, an organization that encourages people over 60 to take action on climate change. He also helped to found 350.org, which was the first global grassroots climate campaign, organizing protests on every continent including Antarctica. McKibben shares his Brief But Spectacular take on working together for climate action.

Astra Taylor is a writer, documentary filmmaker and debt abolitionist who speaks and teaches about the power that debtors can wield. Taylor shares her Brief But Spectacular take on student loans and rethinking what it means to be in debt.

Elizabeth Yeampierre is an attorney and climate justice leader born and raised in New York City. As executive director of Uprose, Brooklyn's oldest Latino community-based organization, she is leading change in sustainable development, environmental justice and community-led adaptation. She shares her Brief But Spectacular take on community resiliency.

Dr. Warren Hern runs a clinic in Boulder, Colorado, that has provided abortion services since 1973, the year Roe v. Wade was decided. He shares his Brief But Spectacular take on being on the front line of the fight over legalized abortion in the U.S. for nearly half a century.