The Zhangjiajie Mountains in China.

Catch the 24-hour program streaming live, starting Dec. 4 at 6 p.m. ET/3 p.m. PT through Dec. 5 at 6 p.m. ET/3 p.m.

The seventh-annual "24 Hours of Reality" is a star-studded, 24-hour live event focused on the climate crisis and its solutions. Hosted by former U.S. Vice President and Climate Reality Founder and Chairman Al Gore, "24 Hours of Reality: Be the Voice of Reality" explores the extraordinary climate activism happening all across the planet. The program encourages the millions watching to use their voices to speak up for solutions, science, and truth at this decisive point in history.

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