	Three months ended September 30,				Nine months ended September 30,

	2012		2011		2012		2011
	(in millions)
Loss on disposal of property, plant and equipment and non-core assets-net	$	0.4	$	37.0	$	4.0	$	6.1
Engineering studies		2.9		—		14.7		—
Bartow costs		0.8		1.4		2.4		3.2
Other		4.5		1.0		20.6		3.0

	$	8.6	$	39.4	$	41.7	$	12.3

In the third quarter of 2011, we recorded a non-cash impairment charge of $35.1 million related to a former methanol plant at our Woodward, Oklahoma nitrogen complex. The Woodward complex was acquired in the Terra acquisition and was able to produce nitrogen fertilizers and methanol. Based on a strategic review that was completed in the third quarter of 2011, management approved the shutdown and removal of the methanol plant, resulting in recognition of an impairment charge, which is included in the first line of the table above.

In February 2011, we sold four of our owned dry product warehouses to GROWMARK and realized a pre-tax gain of $32.5 million, which is included in the first line in the table above.

Engineering studies includes detailed design work, feasibility studies and cost estimates for certain proposed capital projects at our manufacturing complexes.

Bartow costs consist of provisions for AROs and site maintenance costs at our closed phosphate fertilizer facility in Bartow, Florida. The AROs involve costs of closure and post-closure maintenance and monitoring for the phosphogypsum stack systems. For additional information on our AROs, see Note 9—Asset Retirement Obligations.

Other includes losses on foreign currency transactions, litigation related costs and environmental remediation costs associated with a closed facility.