Exhibit 12.1

Ratio of Earnings to Fixed Charges Worksheet

(In millions except ratio)

	Three Months ended March			Year Ended December 31,
Ratio of Earnings to Fixed Charges	31, 2014			2013			2012		2011			2010		2009
Fixed Charges :
Interest expense	$	18.7		$	77.6		$	57.5	$	65.6		$	69.8	$	131.1
Add backs:
Interest capitalized	0.3			0.7			0.3		0.4			0.6		1.0
Interest element of rentals (a)	4.2			18.0			11.1		11.1			11.2		11.2
Total Fixed Charges	$	23.2		$	96.3		$	68.9	$	77.1		$	81.6	$	143.3
Earnings :
Pretax income (loss) from continuing operations	$	(18.3	)	$	241.6		$	177.7	$	53.5		$	44.0	$	225.6
Add back:
Minority interest	—			—			—		0.1			—		0.1
Income (loss) from equity method investees	—			(1.7		)	2.9		2.3			1.9		2.0
Subtotal - Pretax income (loss) from continuing operations before adjustments for minority interest in consolidated subsidiaries or income (loss) from equity method investee	(18.3		)	243.3			174.8		51.2			42.1		223.6
Fixed charges	23.2			96.3			68.9		77.1			81.6		143.3
Add backs:
Amortization of capitalized interest expense	0.1			0.5			1.2		1.2			1.3		1.5
Distributed income of equity method investees	0.8			0.8			2.7		2.0			1.3		3.1
Subtotal of addbacks	24.1			97.6			72.8		80.3			84.2		147.9
Reductions:
Interest capitalized	0.3			0.7			0.3		0.4			0.6		1.0
Minority interest in pre-tax income of subsidiaries that have not incurred fixed charges	—			—			—		(0.1		)	—		(0.1		)
Subtotal of reductions	0.3			0.7			0.3		0.3			0.6		0.9
Subtotal Earnings	5.5			$	340.2		$	247.3	$	131.2		$	125.7	$	370.6
Ratio of Earnings to Fixed Charges	—		(b)	3.5			3.6		1.7			1.5		2.6

(a) We estimated our interest factor for rentals to be 33.3 percent of our actual rental costs.

(b) For the three months ended March 31, 2014, our ratio of earnings to fixed charges was less than 1.00x and earnings available for fixed charges were inadequate to cover fixed charges by $17.7 million.