Fronted by former U.S. Vice President and environmental campaigner Al Gore, the concerts will be held at eight locations on six continents, beginning at 2 p.m. in each locale.
The show sites are London, England; Sydney, Australia; Tokyo, Japan; Shanghai, China; Rio de Janeiro, Brazil; Johannesburg, South Africa; Hamburg, Germany; and East Rutherford, New Jersey in the United States.
Gore said he will take the stage at the New Jersey location -- Giants Stadium, outside New York City -- while his partner, concert producer Kevin Wall, will oversee the production from London.
"The Live Earth concerts represent an unprecedented opportunity to ask for the world's attention long enough to deliver an SOS and then to begin delivering information about the solutions to every single person," Gore said, according to Reuters.
Wall called the coordination and broadcast of the shows "one of the biggest events ever produced in history. It's like producing 10 World Cups in one day." . Wall also promised a surprise event in Antarctica, Reuters reported.
At Thursday's announcement in New York, Gore and Wall unveiled what they call a "7-Point Pledge" that they will ask all participants of the concert to sign:
1 Demand that their countries join in an international treaty to cut global-warming pollutants by 90 percent in developed countries and more than half worldwide
2 Take personal action to reduce carbon dioxide output
3 Fight for a moratorium on the construction of new coal-burning facilities that lack the capability to safety trap and store carbon dioxide
4 Work for a dramatic increase in the energy efficiency of their homes and other places they frequent
5 Fight for policies that expand the use of renewable energy sources
6 Plant new trees and protect forests
7 Buy from businesses and support leaders committed to solving the climate crisis
Those who sign the pledge through their computers or cell phones on July 7 will be shown on the Live Earth Web site, on the concerts' screens and on global TV broadcasts. (CNN)