The first episode of the Climate Reality Project will be a live-streamed event called 24 Hours of Reality held on Sept. 14-15. According to a press release from the organization, “people all around the globe living with the impacts of climate change will connect the dots between recent extreme weather events — including floods, droughts and storms — and the man-made pollution that is changing our climate.”

The video feed will feature scientists, celebrities, executives and citizens from places like Tonga, Mexico City and Alaska, along with Mr. Gore. It will be broadcast over 24 hours in 24 time zones and in multiple languages, the group said.

The idea is to educate the public about the impacts of global warming and to counter what Mr. Gore considers the well-financed disinformation and denial campaign run by the fossil fuel industries.

“The climate crisis knows no political boundaries,” he said in a statement. “Ferocious storms and deadly heat waves are occurring with alarming frequency all over the world. We are living with the reality of the climate crisis every day. The only question is, how soon can we act?”

The project used to be known as the Alliance for Climate Protection but has received a new name and a somewhat new mission. It will have the same leader, Maggie L. Fox, a longtime Gore adviser and climate activist.

“Fossil fuel companies and their allies will go to great lengths to deny the fact that climate change is happening now,” Ms. Fox said. “But we have one powerful response: reality. We will dedicate our resources toward educating and engaging the public about the reality of the climate crisis and helping build the global movement for change.”