EXHIBIT 12

WASTE MANAGEMENT, INC.

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(In Millions, Except Ratios)
(Unaudited)

	Three Months Ended
	March 31,
	2005		2004
Income before income taxes, cumulative effect of changes in accounting principles, losses in equity investments and minority interests	$	258	$	232
Fixed charges deducted from income:
Interest expense		116		113
Implicit interest in rents		13		12
		129		125
Earnings available for fixed charges	$	387	$	357
Interest expense	$	116	$	113
Capitalized interest		3		4
Implicit interest in rents		13		12
Total fixed charges	$	132	$	129
Ratio of earnings to fixed charges		2.9 x		2.8 x