Exhibit 12.1 Waste Management, Inc. Computation of Ratio of Earnings to Fixed Charges (In millions, except ratios) (Unaudited) Years Ended December 31, 2004 2003 2002 ------- ------- ------- Income before income taxes, cumulative effect of changes in accounting principles, losses in equity investments and minority interests $ 1,316 $ 1,129 $ 1,249 ------- ------- ------- Fixed charges deducted from income: Interest expense 455 439 467 Implicit interest in rents 51 69 66 ------- ------- ------- 506 508 533 ------- ------- ------- Earnings available for fixed charges $ 1,822 $ 1,637 $ 1,782 ======= ======= ======= Interest expense $ 455 $ 439 $ 467 Capitalized interest 22 22 20 Implicit interest in rents 51 69 66 ------- ------- ------- Total fixed charges $ 528 $ 530 $ 553 ======= ======= ======= Ratio of earnings to fixed charges 3.5x 3.1x 3.2x ======= ======= =======