ORDER

The Order and Opinion filed on February 24,1999, is amended as follows:

Replace the last paragraph on page 12, continuing on to page 13, with the following:

A further word concerning the death warrant is in order. The warrant parallels the statute in giving LaGrand a choice of the method of execution.

A.R.S. 13.704B provides:

The petitioner did choose execution by lethal gas twenty days prior to the execution date. The State acknowledged at oral argument that the petitioner could not change his mind. Thus, execution under the existing warrant would require execution by lethal gas. Since we have held the method chosen by LaGrand to be unconstitutional, the death warrant must be reissued in a form that does not require execution by lethal gas.

OPINION

Karl LaGrand, an Arizona death row inmate, appeals the district court’s order denying his second petition for writ of habeas corpus. For the reasons which follow, we affirm in part and reverse in part.

I. Procedural History

Karl LaGrand and his brother Walter LaGrand were convicted of murder for the 1982 murder of a bank employee in the course of a robbery. For a description of the crime and prior proceedings see State v. LaGrand, 153 Ariz. 21 , 734 P.2d 563 (1987), and LaGrand v. Stewart, 133 F.3d 1253 (9th Cir.), cert. denied, — U.S. -, 119 S.Ct. 422 , 142 L.Ed.2d 343 (1998).

In the prior case, the district court denied all of LaGrand’s claims, and this court affirmed. See 133 F.3d at 1257 . Following denial of certiorari by the Supreme Court, a death warrant was issued, scheduling the execution for February 24, 1999. LaGrand thereafter filed a number of different proceedings in the courts of Arizona. The Arizona state courts have denied all relief to LaGrand. LaGrand then filed a request with this court for leave to file a second or successive habeas corpus petition, pursuant to 28 U.S.C. § 2244 (b). That request was denied by a separate order in case number 99-70180, issued concurrently with this opinion. LaGrand also filed a separate habeas petition in district court which is the subject of this opinion.

II. Issues Other Than Lethal Gas

The issues raised in the second petition in the district court paralleled the issues sought to be presented in the second or successive (“SOS”) petition. The district court decided that it had jurisdiction of the claim relating to the use of lethal gas as a method of execution and denied the claim on the merits. As to all the other claims, the district court stated either that it lacked jurisdiction in the absence of an order from this court authorizing the filing of an SOS petition, or that for other reasons the claims were not cognizable. The district court’s decision on all the claims except the lethal gas claim is affirmed, for the reasons given in our order entered in case number 99-70180.

III. Lethal Gas

A. California

The use of lethal gas as a method of execution has been extensively litigated in California since 1992. In that year, plaintiff David Fierro and others filed a class action pursuant to 42 U.S.C. § 1983 challenging lethal gas as an unconstitutional method of execution. One of the plaintiffs was Robert Alton Harris, whose execution was scheduled to take place four days after the case was filed. Harris’ participation resulted in a number of stays of execution, all subsequently vacated by the Supreme Court. See Fierro v. Gomez (“Fierro II”), 77 F.3d 301, 302-03 (9th Cir.1996), for the history of the litigation.

The Fierro case was ultimately tried before the district court in 1993. After the trial, the court entered an order holding that lethal gas, as employed pursuant to the “protocol” governing its use in California, constituted a cruel and unusual method of execution and enjoined its use as a means of execution. 865 F.Supp. 1387 (N.D.Cal.1994).

On appeal by the State, we affirmed. See Fierro II, 77 F.3d at 301 . After our decision, the California statute governing executions was amended to provide lethal injection as the primary method of execution. Inmates sentenced to death before the effective date of the act were given the option of choosing lethal gas as the method of execution in their cases. See Cal.Penal Code § 3604(b). The Supreme Court vacated our decision in Fierro II and remanded with instructions to reconsider our decision in light of the statutory change. Gomez v. Fierro, 519 U.S. 918 , 117 S.Ct. 285 , 136 L.Ed.2d 204 (1996).

In response to the Supreme Court’s order, we held that the case was not ripe for decision, since no inmate in California was then subject to execution by lethal gas, at least in the absence of an affirmative choice by an inmate to have lethal gas used in his or her execution. Fieiro v. Terhune (“Fierro III”), 147 F.3d 1158, 1160 (9th Cir.1998). We remanded to the district court with instructions to vacate its judgment, giving the district court the authority to reinstate its judgment when presented with a ripe claim. Id.

B. Arizona

The Arizona experience somewhat parallels that of California. The use of lethal gas was the only authorized method of execution from the 1930s until 1992. The first case challenging the use of lethal gas in Arizona was the 1934 case of Hernandez v. State, 43 Ariz. 424 , 32 P.2d 18 (1934). The Arizona Supreme Court upheld the constitutionality of the use of lethal gas in that case, as it did again in 1987 in State v. Williams, 166 Ariz. 132 , 800 P.2d 1240 (1987). In the latter case, it noted that Williams’ claim had “been uniformly rejected on the federal level.” Id., 800 P.2d at 1250 .

The Arizona legislature amended the statute in 1992 to make lethal injection the designated method of execution, with those inmates who were sentenced to death prior to the amendment having the option of choosing lethal gas as the method of exe- ration to be used in his or her case. Ariz. Rev.Stat. § 13-704(B).

C. Karl LaGrand’s Claim

Karl LaGrand committed the crimes of which he was convicted in 1982. He was sentenced to death in 1984, and his direct appeal was concluded in 1987. The first post-conviction relief proceedings were completed in Arizona Superior Court in 1989. The Arizona Supreme Court denied review, as did the United States Supreme Court. See LaGrand v. Arizona, 501 U.S. 1259 , 111 S.Ct. 2911 , 115 L.Ed.2d 1074 (1991).

At no time in the direct appeal or the first PCR petition did LaGrand argue the unconstitutionality of the use of lethal gas as a method of execution. The claim was raised for the first time in the habeas corpus petition filed in 1992, and amended in 1993. The district court rejected the claim as unexhausted, and this court held the claim was not ripe for decision. See 133 F.3d at 1264 .

1. Procedural Default

LaGrand recently presented his lethal gas claim to the Arizona Superior Court, which rejected it as waived. LaGrand argues here that since our previous decision was that the claim was not ripe, it can now be heard because it is now admittedly ripe. LaGrand’s argument fails to account for the procedural default declared by the state court. The state court’s decision appears sound as a matter of state law. There was no ripeness impediment to LaGrand’s presentation of the lethal gas claim at any time during his state court efforts in the 1980s. At that time, lethal gas was the only method of execution authorized for use in Arizona. The fact that the claim is now ripe for decision in this court is no answer to the procedural default declared by the state courts.

When LaGrand presented this claim to the district court in the present habeas petition, it rejected the claim on the basis that it was procedurally barred, and that LaGrand had not shown cause and prejudice to excuse the procedural default. This is the only place where we disagree with the district court’s analysis.

2. Cause and Prejudice

As the district court said, cause exists if the petitioner can show that “some objective factor external to the defense impeded counsel’s efforts to comply with the state’s procedural rule.” Coleman v. Thompson, 501 U.S. 722, 753 , 111 S.Ct. 2546 , 115 L.Ed.2d 640 (1991). As the district court also noted, such objective factors can “include interference by officials which makes compliance with the state’s procedural rule impractical, a showing that the factual or legal basis for a claim was not reasonably available to counsel, and constitutionally ineffective assistance of counsel.” District Court Order at 11 (citing Murray v. Carrier, 477 U.S. 478, 488 , 106 S.Ct. 2639 , 91 L.Ed.2d 397 (1986)).

In 1984 and the years following, LaG-rand’s counsel was facing a statutory scheme which was upheld in 1934 in Hernandez , and in 1987 in Williams . Moreover, no reported case anywhere had held lethal gas to be unconstitutional and there was no reason to believe that any court would hold to the contrary.

The State characterizes LaGrand’s position as one of futility, and points to cases which hold that the futility of presenting an objection at trial cannot be cause for failing to make the objection. The futility doctrine as an excuse for not presenting a claim to the state court has met with disfavor in the Supreme Court and here. See Engle v. Isaac, 456 U.S. 107, 130 , 102 S.Ct. 1558 , 71 L.Ed.2d 783 (1982); Noltie v. Peterson, 9 F.3d 802, 805 (9th Cir.1993). But we believe the portion of Engle v. Isaac quoted by the district court sets out the point in the analysis where we diverge from the district court: “If a defendant perceives a constitutional claim and believes it may find favor in the federal courts, he may not bypass the state courts simply because he thinks they will be un sympathetic to the claim.” 456 U.S. at 130 , 102 S.Ct. 1558 .

As pointed out above, there was no reason to believe that any court, anywhere, would be sympathetic to the claim that lethal gas was an unconstitutional method of execution. According to the information given to us by the parties, there was no available factual information concerning the painful nature of lethal gas execution, until the 1992 execution of Don Harding in Arizona, and the contemporaneous California executions relied on by the district court in Fierro. This is clearly a claim for which the factual or legal basis was not reasonably available at the time that LaG-rand pursued his direct appeal in state court. See Murray, 477 U.S. at 488, 106 S.Ct. 2639 .

The State’s argument-that LaGrand should have raised this plainly futile issue on direct appeal-is a reversal of the legitimate argument we often see in response to a claim of ineffective assistance of counsel, that a lawyer need not raise every conceivable claim in order to do an adequate job. As the Court said in Jones v. Barnes, 463 U.S. 745 , 103 S.Ct. 3308 , 77 L.Ed.2d 987 (1983):

Id. at 752-53 , 103 S.Ct. 3308 (quoting Davis, The Argument of an Appeal, 26 ABAJ 895, 897 (1940)).

In a legal landscape which was worse than bleak, the claim that lethal gas was unconstitutional was not reasonably available to LaGrand’s counsel in the 1980s. Therefore, he has shown cause for not raising this claim prior to his first habeas petition.

The question of prejudice is easily resolved. LaGrand is now faced with execution by an allegedly unconstitutional means. This surely qualifies as prejudice, defined as actual harm resulting from the claimed constitutional error. See Magby v. Wawrzaszek, 741 F.2d 240, 244 (9th Cir.1984).

IV. Waiver

Finally, the State argues that LaGrand’s voluntary choice of lethal gas as a method of execution constitutes a waiver of his claim that the use of lethal gas is unconstitutional. This argument is foreclosed by the law of the circuit that Eighth Amendment protections may not be waived, at least in the area of capital punishment. We said in Campbell v. Wood, 18 F.3d 662 (9th Cir.1994) (en banc):

Id. at 680 (citing Dear Wing Jung v. United States, 312 F.2d 73, 75-76 (9th Cir.1962)).

LaGrand has not waived his ability to challenge the constitutionality of lethal gas as a method of execution.

V. Fierro as Applied to LaGrand

LaGrand argues, and the State concedes, that the Arizona method of using lethal gas to execute inmates is substantially similar to that used in California.

The Fierro district court found, following an eight day bench trial:

77 F.3d at 308 (quoting Fierro v. Gomez, 865 F.Supp. 1387, 1404 (N.D.Cal.1994)).

Even though the district court’s decision was vacated pursuant to our order, see 147 F.3d 1158 , no court has ever said the district court was wrong. In our own review of the district court decision, we said:

77 F.3d at 308-09 .

Counsel for the State has candidly admitted that if the question of Arizona’s use of lethal gas went to trial, the record would be no different than it was in Fier-ro. There appears to be no reason to put the parties to the ritual of creating a new record in this case to parallel Fierro. We already know what conclusion is compelled by that record.

A further word concerning the death warrant is in order. The warrant parallels the statute in giving LaGrand a choice of the method of execution.

A.R.S. 13.704B provides:

The petitioner did choose execution by lethal gas twenty days prior to the execution date. The State acknowledged at oral argument that the petitioner could not change his mind. Thus, execution under the existing warrant would require execution by lethal gas. Since we have held the method chosen by LaGrand to be unconstitutional, the death warrant must be reissued in a form that does not require execution by lethal gas.

IT IS HEREBY ORDERED that the state respondents, their agents, servants and employees be, and hereby are, restrained and enjoined from executing Karl Hinze LaGrand pursuant to the existing death warrant, and are further temporarily restrained and enjoined from executing Karl Hinze LaGrand, or anyone similarly situated, by means of lethal gas. This order shall be effective immediately, and shall remain in effect until the district court has entered a permanent injunction.

The decision of the district court is AFFIRMED in part and REVERSED in part. The case is REMANDED to the district court with instructions to enter a permanent injunction consistent with this opinion.

The motion for stay of execution is GRANTED to the extent it is encompassed in the above order.

. This was the second amendment. An earlier amendment had added lethal injection as an alternate method of execution. See Fierro II at 303.