Al Gore's Presentation Concludes Climate Reality Project's '24 Hours Of Reality' (VIDEO)

09/15/2011 05:09 pm ET | Updated Nov 15, 2011

Over the course of 24 hours, 24 presenters in 24 time zones shared one common message: The world needs to accept the realities of climate change, and people need to act now.

Al Gore's Climate Reality Project, which launched "24 Hours of Reality" this week, featured presenters from the Solomon Islands to Cape Verde, London to Rio de Janeiro, speaking out about the dire implications of global warming. Stars showed up throughout the event, with celebrities including Mark Ruffalo and Renee Zellweger joining the fight against climate change.

When Al Gore sat down with The Huffington Post this week to speak about the climate change battle, he showed his eagerness to spread the message by saying, "If I thought it would help to stand on my head and do it in rhyme, I would do my best to pull that off."

At 7pm ET on Thursday, Al Gore closed the 24-hour event with his climate change presentation. According to HuffPost's Bonnie Christian and James Gerken, when Gore walked on stage, a ballroom full of people greeted him with a standing ovation. Reiterating his message of "reality," Gore calmly explained the dramatic and frequent weather events currently affecting our planet, and how these are linked to climate change.

Scroll down to view powerful videos from the event.

WATCH Al Gore's presentation:

Video streaming by Ustream

DOUBT narrated by Matthew Modine:

DOUBT from The Climate Reality Project on Vimeo.

CLIMATE 101 narrated by Bill Nye:

CLIMATE 101 from The Climate Reality Project on Vimeo.

GRASSROOTS:

GRASSROOTS from The Climate Reality Project on Vimeo.

CORRECTION: A previous version of this piece had incorrectly swapped the narrators for the middle two videos. The names are now correct.

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