Carrier Corp. has signed a Memorandum of Understanding (MOU) with the Clinton Climate Initiative (CCI) to provide its energy-efficient, non-ozone depleting water-cooled chillers to qualified C40 cities and private building owners in the C40. Carrier, a unit of United Technologies Corp., is the first heating, ventilation and air-conditioning company to sign an MOU with the CCI for energy-efficient products. The CCI is a project of the William J. Clinton Foundation. The C40 is a group of the world's largest cities committed to tackling climate change.For more information, visit: www.carrier.com.