Former US Vice President Al Gore will host The Climate Reality Project's seventh-annual broadcast — 24 Hours of Reality: Be the Voice of Reality — a 24-hour live event, empowering millions watching worldwide to speak up for solutions, science, and truth on climate change.

Prime Minister Jacinda Ardern is among the elected officials participating in the live event.

The event will feature special performances by global music stars One Republic, Sheryl Crow, Shawn Mendes, Jay Park, Iggy Pop, The Killers among others.

Watch the live event here:

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This year's 24 Hours of Reality will explore the extraordinary climate activism happening all across the planet, highlighting inspiring stories of politicians, businesses, communities,and everyday people standing up and illustrating how we can all make a difference, right now, right when our planet needs us most.

The program will begin at noon Tuesday NZT and will be broadcast live from New York City's Roosevelt Island.

The broadcast will travel around the globe highlighting stories of climate activism in sixregions: North America, Oceania, Asia, the Middle East and Africa, Europe, and Central and South America.

Al Gore will also share stories and statistics from the iconic slideshow presentation featured in the film An Inconvenient Truth and the recently-released An Inconvenient Sequel: Truth to Power.