Exhibit 12.1

WASTE MANAGEMENT, INC.

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(In Millions, Except Ratios)

(Unaudited)

	Years Ended December 31,
	2012		2011		2010		2009		2008
Income before income taxes and losses in equity investments(a)	$	1,350	$	1,557	$	1,656	$	1,475	$	1,801
Fixed charges deducted from income:
Interest expense		488		481		473		426		455
Implicit interest in rents		59		45		40		38		38
		547		526		513		464		493
Earnings available for fixed charges(b)	$	1,897	$	2,083	$	2,169	$	1,939	$	2,294
Interest expense	$	488	$	481	$	473	$	426	$	455
Capitalized interest		21		22		17		17		17
Implicit interest in rents		59		45		40		38		38
Total fixed charges(b)	$	568	$	548	$	530	$	481	$	510
Ratio of earnings to fixed charges(a)		3.3x		3.8x		4.1x		4.0x		4.5x

(a) Our “Income before income taxes and losses in equity investments” for the periods presented has been significantly affected by restructurings, asset impairments, divestitures and other items that management believes are not representative of our results. The effect of these items on our “Income before income taxes and losses in equity investments” should be considered when comparing the “Ratio of earnings to fixed charges” for the periods presented.

(b) 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 Consolidated 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, as amounts are immaterial.