This year, Earth Day means business. Top environmentally-minded business leaders and the green movement's brightest thinkers will convene in Pasadena, California on April 21 and 22—Earth Day— for FORTUNE's first-ever Brainstorm: GREEN Conference.

This invitation-only event will be an unprecedented gathering of business and environmental leaders, as executives, academics, politicians and NGOs join to discuss the impact of the green movement and explore the opportunities and challenges facing FORTUNE 500 companies, entrepreneurs, government, and the financial world.

FORTUNE Brainstorm: GREEN will be comprised of a mix of plenary sessions, including on-stage interviews with FORTUNE editors, panel discussions and concurrent roundtable discussions. It will also include sessions featuring NGOs on the same stage with CEOs of FORTUNE 500 companies, "great green ideas" from leading entrepreneurs, and a reception to meet the rabble rousers.