Citibank is launching a $50 billion investment over the next 10 years to address global climate change as a corporate responsibility according to Michael Klein, Chairman and Co-Chief Executive Officer of Citi Markets and Banking and Vice Chairman of Citibank International plc. Klein will discuss the campaign in an address to the Overseas Press Club of America and environmental reporters Monday, June 25 at Club Quarters (6 p.m.) (40 W. 45th St.).

Klein will describe Citi's investments in clean energy and alternative technology, and affordable home equity loans to make homes more energy efficient. He will describe plans for bringing together business and political leaders to discuss social responsibility.

As an example, Citi Private Bank and the Financial Times have created an Environment Award for businesses around the world that have significantly improved their environmental performance.

The Markets and Banking group see opportunities in supporting companies working in alternative energies such as solar, wind, hydro, and geothermal. They would facilitate investments in aging infrastructures using clean and more efficient technologies.

Klein was named Investment Banker of the Year by Investment Dealers Digest and one of Fortune magazine's 25 Global Leaders to watch.