Exhibit 12.1

	Nine Months Ended September 30, 2009			2008			2007			2006			2005			2004
	(Unaudited)
Earnings (losses):
Losses before income taxes		(96,198	)		(105,860	)		(134,196	)		(167,927	)		(203,082	)		(137,768	)
Gain on debt restructuring		-			(130,698	)		-			-			-			-
Amortization of capitalized interest (a)		-			-			-			-			4,206			3,557
Interest capitalized (d)		-			(3,636	)		(10,109	)		(5,692	)		(2,793	)		-
		(96,198	)		(240,194	)		(144,305	)		(173,619	)		(201,669	)		(134,211	)
Fixed Charges:
Amortization of expenses related to indebtedness (b)		12,235			12,862			11,749			10,246			523			524
Interest expenses (c)		21,804			20,174			33,444			39,264			32,362			26,582
Interest capitalized (d)		-			3,636			10,109			5,692			2,793			-
Total Fixed Charges		34,039			36,672			55,302			55,202			35,678			27,106
Earnings (losses), as adjusted		(62,159	)		(203,522	)		(89,003	)		(118,417	)		(165,991	)		(107,105	)
Ratio of earnings to fixed charges		(i)			(ii)			(iii)			(iv)			(v)			(vi)

⁽ⁱ⁾ Earnings as adjusted were inadequate to cover fixed charges by $96.2 million for the nine months ended September 30, 2009.

⁽ⁱⁱ⁾ Earnings as adjusted were inadequate to cover fixed charges by $240.2 million in 2008.

⁽ⁱⁱⁱ⁾ Earnings as adjusted were inadequate to cover fixed charges by $144.3 million in 2007.

^(iv) Earnings as adjusted were inadequate to cover fixed charges by $173.6 million in 2006.

^(v) Earnings as adjusted were inadequate to cover fixed charges by $201.7 million in 2005.

^(vi) Earnings as adjusted were inadequate to cover fixed charges by $134.2 million in 2004.

^(a) Includes amortization of deferred financing charges in connection with obtaining long-term bank loans which are comprised mainly of stock-based compensation related to warrants issued to banks.

^(b) Includes amortization of convertible debentures discount, and deferred issuance expenses.

^(c) Includes, mainly, the effective interest of long-term loans based on their terms and the effect of hedge agreements with knock-out and knock-in features and interest expenses in relation to convertible debentures.

^(d) Includes, mainly, the effective capitalized interest of long-term loans based on their terms and the effect of hedge agreements with a knock-out feature, capitalized interest in relation to convertible debentures and deferred financing charges in connection with obtaining long-term bank loans which are comprised mainly of stock-based compensation related to warrants issued to banks.