For a new generation of climate activists, the 50th anniversary of Earth Day is not a day of celebration but a day of mobilization combined with a sober critique of why the ideals of the first Earth Day are still so far from being realized. Gus Speth, co-chair of The Next System Project, was beginning a long career as an environmental activist and leader on the first Earth Day. Dulce Arias is an 18-year-old leader in Youth vs. Apocalypse looking to play a pivotal role in the next 50 years of environmental activism. Together, they discuss what they have learned from the past 50 years and how to apply that knowledge to today’s climate crisis.

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