EXHIBIT 12

WASTE MANAGEMENT, INC.

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

	Nine Months Ended
	September 30,
	2008			2007
Income before income taxes, losses in equity investments and minority interests	$	1,450		$	1,331
Fixed charges deducted from income:
Interest expense		341			395
Implicit interest in rents		28			42
		369			437
Earnings available for fixed charges (a)	$	1,819		$	1,768
Interest expense	$	341		$	395
Capitalized interest		13			16
Implicit interest in rents		28			42
Total fixed charges (a)	$	382		$	453
Ratio of earnings to fixed charges		4.8	x		3.9	x

(a) To the extent interest may be assessed by taxing authorities on any underpayment of income tax, such amounts are classified as a component of income tax expense in our Statements of Operations. For purposes of this disclosure, we have elected to exclude interest expense related to income tax matters from our measurements of “Earnings available for fixed charges” and “Total fixed charges” for all periods presented.