Representatives from six continents are meeting on Oahu to discuss the important issue of our changing global climate.
Their visit coincides with the start of our "Going Green in Hawaii" series, here on KHNL News 8.
And while Wednesday's meetings were closed to the public, environmentalists found a way to get their message heard.
Wednesday's demonstration was called "Project Blue Line".
The point of the demonstration was to show the impact of the estimated one meter rise in sea level, by the end of the century.
The demonstration covered about eight city blocks.
Organizers say this was designed to be a visual representation of the impact of global warming.
The blue tape indicates how much water will rise in Hawaii.
Neighborhoods like Ala Moana, Waikiki, McCully and Moilili could be partially underwater by the end of this century.
"Oceans rising is a huge concern. Hawaii is known for its beach. That's what draws seven million visitors here. and they could be the first thing to go, and with any ocean front property and buildings behind them the very next thing," says Rob Parsons, environmentalist.
"There's plenty of renewable energy on the islands if we look at solar, if we look at wind power and waves. There's a lot of potential in those things," says Kasha Ho, environmentalist.
These environmentalists encourage people to work with leaders to protect the environment.
They're planning to have more public education and outreach efforts in the near future.
And this "Blue Line" project all started with a professor at the University of Hawaii at Manoa.
''When you see the blue line, it maps the community that's vulnerable. And it's just warning to us that we should not ignore this future process that's going to take place," says Chip Fletcher, University of Hawaii Geology Department.
Chip Fletcher is a professor in the Department of Geology and Geophysics at the University of Hawaii.
He's the driving force behind the research that inspired Wednesday's visual demonstration.
Next week, we go in-depth with Professor Fletcher, as he explains the making of the "Blue Line", how it could affect all of us, and what we can do to stop it.