Waste Management Announces Cash Dividend

Houston — February 25, 2013 — Waste Management, Inc. (NYSE: WM) today announced the declaration of a quarterly cash dividend of $0.365 per share payable March 22, 2013 to stockholders of record on March 11, 2013.

ABOUT WASTE MANAGEMENT

Waste Management, Inc., based in Houston, Texas, is the leading provider of comprehensive waste management services in North America. Through its subsidiaries, the company provides collection, transfer, recycling and resource recovery, and disposal services. It is also a leading developer, operator and owner of waste-to-energy and landfill gas-to-energy facilities in the United States. The company’s customers include residential, commercial, industrial, and municipal customers throughout North America. To learn more information about Waste Management visit www.wm.com or www.thinkgreen.com.

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