Earth Day aims to reach millions with 'Angry Birds' game

Game developers at Rovio Entertainment are announcing plans Saturday to create an in-game experience about climate change. The game will debut in September to coincide with the U.N. General Assembly as world leaders discuss sustainability goals.

Blanca Juti of Rovio Entertainment says the game company wanted to raise awareness in a fun way and make people think about climate change. Last year, they teamed up with Prince William's United for Wildlife to create a conservation-related game. That drew 10 million game sessions.