9.  The case concerns the national authorities' failure to implement the domestic courts' order to shut down three thermal power plants which pollute the environment in the province of Muğla, in south-west Turkey. 10.  The applicants are all lawyers who live and practise in İzmir, a city which is approximately 250 kilometres from the site of the power plants. Relying on Article 56 of the Constitution and section 3(a) of the Environment Act (see paragraphs 46 and 47 below), the applicants argued that it was their constitutional right to live in a healthy and balanced environment, and their duty to ensure the protection of the environment and to prevent environmental pollution. 11.  The Yatağan, Yeniköy and Gökova thermal power plants have been operated for many years by the Ministry of Energy and Natural Resources and the public utility company Türkiye Elektrik Kurumu (“TEAŞ”) in Muğla, in the Aegean region of Turkey. In the course of their operation, the poor-quality coal used by the plants to produce energy has caused pollution and harmed the region's biological diversity. 12.  By petitions of 16 April 1993, 28 April 1993 and 11 February 1994, the applicants called on the Ministries of Health, of the Environment and of Energy and Natural Resources, TEAŞ and the Muğla provincial governor to take action to halt the operation of the Gökova, Yatağan and Yeniköy thermal power plants. They claimed that these three power plants had failed to obtain the requisite licences and that their operation constituted a danger to public health and to the environment. 13.  The above-mentioned administrative authorities did not reply to the applicants' request, which, under section 10(2) of the Administrative Procedure Act (Law no. 2577), amounted to a refusal. 14.  On 16 July 1993, 18 July 1993 and 18 May 1994 the applicants brought three separate actions in the Aydın Administrative Court concerning the Gökova, Yatağan and Yeniköy power plants respectively, against the Ministries of Health, of Energy and Natural Resources and of the Environment, TEAŞ and the Muğla provincial governor's office. They requested that the administrative decision refusing to halt the power plants' operation be set aside. The applicants further asked the court to order an interim measure to suspend the activities of these power plants on the ground that they were causing irreparable harm to nature and to public health. As to their legal capacity to bring the proceedings in question, the applicants relied on Article 56 of the Constitution and sections 3 and 30 of the Environment Act (see paragraphs 46, 47 and 50 below). 15.  The Aydın Administrative Court appointed a panel of experts, composed of three university professors who were experts in forestry, the environment and chemistry respectively, with a view to determining the effects of the three power plants' operation on the environment. 16.  On 16 February 1996 the experts submitted their reports to the court. They concluded that the plants emitted considerable amounts of nitrogen dioxide and sulphur dioxide and were not equipped with the mandatory chimney filters. They found that the power plants constituted a danger to a zone measuring 25-30 kilometres in diameter. Accordingly, they recommended that the Gökova power plant be immediately shut down, that one unit in each of the Yeniköy and Yatağan power plants should cease to operate and that desulphurisation units should be installed in them. 17.  On 20 June 1996 the Aydın Administrative Court issued an interlocutory injunction for suspension of the power plants' operation. It found that TEAŞ had been operating the plants since 1994 under the guise of “test operations”, without having obtained the requisite permits for construction, gas emissions and the discharge of waste water. On the basis of the experts' findings, the court noted that the plants had already caused pollution that was harmful to human health and the environment and that their continued operation could cause irreparable harm to the public. Consequently, it ruled that the administrative authorities' decision refusing to halt the plants' operation had been unlawful. 18.  On 29 August 1996 the Regional Administrative Court in Aydın, an appellate body responsible for examining decisions given by a single judge in the administrative courts, dismissed the defendant authorities' appeal against the injunction of 20 June 1996.
(a)  The case of the Gökova power plant 19.  The applicants alleged before the Administrative Court that the continued operation of the Gökova power plant would lead to environmental disaster. In particular, it would reduce the number of marine fish species, harm forests and agricultural areas and would have an adverse impact on tourism on account of the risk of hazardous emissions. In this connection, they claimed that the authorities had failed to prepare an environmental impact report and to obtain the necessary operating permits. 20.  In its submissions to the Administrative Court, the Ministry of Energy and Natural Resources disputed the applicants' legal capacity to bring the action in question, alleging that they did not have a legal interest to bring such an action as required by section 5(2) of the Administrative Procedure Act (see paragraph 55 below). It further claimed, inter alia, that there was no requirement to obtain an environmental impact report and that the authorities had already applied for the requisite permits. It also noted that the authorities were taking the necessary steps to install a new flue gas desulphurisation system. 21.  In addition to those submissions from the Ministry of Energy and Natural Resources, the Ministries of Health and of the Environment, TEAŞ and the Muğla provincial governor's office claimed that the case ought to be dismissed because the necessary equipment would be installed in the plant to prevent pollution. 22.  On 30 December 1996 the Aydın Administrative Court set aside the defendant authorities' decision to refuse to halt the operation of the Gökova power plant. In its decision, the court first dismissed the objection concerning the applicants' alleged lack of a legal interest to bring an action to halt the plant's operation. Referring to section 2 of the Administrative Procedure Act, the court noted that there was no requirement to claim a violation of a personal interest in cases concerning the protection of the environment or the historical and cultural heritage, or which were closely related to issues of public interest (see paragraph 53 below). It further found that the thermal power plant was being operated as a “test operation” and did not have the requisite permits. In this connection, the court found, inter alia:
“... Furthermore, in order to determine whether the thermal power plant caused damage to the environment, a survey of the area was conducted by three experts, namely Professor M. Doğan Kantarcı, Professor Ayşen Müzzinoğlu and Professor İlker Kayadeniz. The [aforementioned experts'] report, on which this judgment is based, noted that the Kemerköy (Gökova) thermal power plant consisted of three units, each capable of generating 210 megawatts of electricity. The plant uses poor-quality lignite coal to generate energy. It has no equipment for filtering sulphur dioxide and nitrogen oxide gases discharged through its chimneys ... Each of the three units of the Kemerköy thermal power plant uses 1.4 million tonnes of coal. It is not possible to decrease air pollution by reducing the capacity of a thermal power plant which uses poor-quality coal. It appears that 110.5 million tonnes of coal are stocked on the thermal power plant's premises. Given that the annual amount of coal to be used by the three units is around 4.2 million tonnes, the thermal power plant would need to operate for twenty-six years to use up all the coal. If even one unit of the Kemerköy power plant were to operate, this would have a detrimental effect on the environment. The gas emitted from the chimneys disperses over an area measuring approximately 2,350 kilometres in diameter ... Should three units of the Kemerköy and two units of the Yeniköy thermal power plants be operated, the Datça and Betçe zones of the Reşadiye peninsula would be adversely affected by sulphur dioxide. The delivery of coal to the power plant by ship would also cause marine pollution. [It follows] that the operation of the Kemerköy power plant has a harmful effect not only on the areas in the vicinity but also on distant areas. [Accordingly], in order to remove the sulphur dioxide from the gas discharged through the chimneys, desulphurisation units must be installed. This would remove 95% of the sulphur dioxide.
Our country's electrical energy needs can never be disregarded. However, the electricity plants in operation, or to be constructed, must meet the requirements of the above-mentioned regulations, so that the public interest is respected. The public interest cannot be said to have been respected if irreparable harm is caused to the environment merely in order to generate electricity.
It appears that the requisite measures were not taken prior to the plant's construction and the start of operations. Despite the possibility of minimising the adverse environmental effects of the power plants, which represent a long-term State investment, it is obvious that the necessary steps were not taken or that little was done from the planning stage to the point of commencing operations.
The financial cost of installing a flue gas desulphurisation system must not be a deterrent. Discussion of the financial cost of the benefit that would accrue to the population from the measures to be taken by the administration is incompatible with the aim of a social State ...” 23.  Given that the thermal power plant had caused environmental pollution, that no preventive measure had been taken and that the requisite permits for construction, operation, gas emission and the discharge of waste water had not been obtained, the court concluded that the refusal of the applicants' request to halt the plant's operation had been unlawful.
(b)  The case of the Yeniköy power plant 24.  The applicants contended before the Administrative Court that the operation of the Yeniköy power plant without the requisite permits and installations would lead to environmental disaster. They therefore asked the court to set aside the administrative authorities' decision to refuse to halt the plant's operation. 25.  The Ministry of Energy and Natural Resources claimed that the power plant had received the requisite construction permit and that TEAŞ was taking the necessary steps to install flue gas desulphurisation equipment. However, it denied that the power plant was polluting the environment and claimed that closure of the plant would give rise to energy shortages in the Aegean region. 26.  The Ministry of Health submitted that the plaintiffs did not have a legal interest to bring such an action as required by section 5(2) of the Administrative Procedure Act (see paragraph 55 below). It contended, inter alia, that the relevant authorities were taking the necessary steps to prevent the plant from polluting the environment. 27.  The Ministry of the Environment maintained that it did not have authority to issue an operating permit for power plants but was nonetheless required to submit its opinion on such permits. It noted that it had already sent an opinion to the Ministry of Health and to TEAŞ. In its view, no environmental impact report was required in respect of the power plant, since it had been constructed prior to the enactment of the Environment Act. 28.  For its part, TEAŞ asserted that the plaintiffs did not have a legal interest in the action and that the case should therefore be dismissed. It alleged, inter alia, that the power plant had received the requisite permits from the authorities and that it had been equipped with electronic chimney filters. The company further claimed that there was no alternative energy supply, and that the power plant's closure would result in energy shortages in the region. 29.  On 30 December 1996 the Aydın Administrative Court delivered a judgment similar to that in the case of the Gökova thermal power plant, and set aside the administrative authorities' decision to refuse to close the Yeniköy thermal power plant. Relying on the experts' report, the court noted that the Yeniköy plant did not have the necessary operating permits and that it had already polluted the environment. It therefore found that the administrative authorities' decision had been unlawful.
(c)  The case of the Yatağan power plant 30.  The applicants argued before the Administrative Court that the Yatağan power plant had been in operation since 1982 and that the damage it caused to the environment had been observed since 1985. They contended that the defendant authorities had failed to obtain the requisite permits for the power plant's operation. They therefore asked the court to set aside the administrative authorities' decision to refuse to close the plant. 31.  As they had done in the cases of the Gökova and Yeniköy plants, the defendant administrative authorities challenged the applicants' legal interest to bring an action in the Administrative Court for the purpose of shutting down the Yatağan plant. They denied that the plant polluted the environment and claimed that the necessary permits would be obtained and that flue gas desulphurisation equipment would be installed. The administrative authorities also pointed out that there would be a significant energy shortage in the region if the plant's operation were to be halted. They asked the court to dismiss the action. 32.  On 30 December 1996 the Aydın Administrative Court dismissed the defendants' objection concerning the applicants' alleged lack of legal interest and set aside the administrative decision to continue the plant's operation without obtaining the requisite permits. Referring to the experts' report, the court reasoned that the plant was polluting the environment and therefore concluded that the administrative decision to refuse to halt the plant's operation had been unlawful. 33.  By decisions of 3 and 6 June 1998, the Supreme Administrative Court upheld the above-mentioned three judgments of the Aydın Administrative Court. 34.  On 26 April 1999 the Supreme Administrative Court rejected the defendant authorities' requests for rectification. 35.  By virtue of section 28 of the Administrative Procedure Act and of Article 138 § 4 of the Constitution, the administrative authorities are obliged to comply with court decisions and to enforce them within thirty days following service of the decision (see paragraphs 57 and 58 below). 36.  By a decision of 3 September 1996, the Council of Ministers, composed of the Prime Minister and other cabinet ministers, decided that the three thermal power plants should continue to operate, despite the administrative courts' judgments. The Council of Ministers reasoned that closure of the plants would give rise to energy shortages and loss of employment and would thus affect the region's income from tourism. Taking the view that the necessary measures were being taken by the authorities with a view to preventing the plants from polluting the environment, the Council of Ministers decided that the plants' operation should not be halted. 37.  In letters of 6 and 14 September 1996, the applicants asked the defendant administrative authorities to enforce the judgments of the Aydın Administrative Court. 38.  On 11 November 1996 the applicants filed criminal complaints with the offices of the Ankara Chief Public Prosecutor and of the public prosecutors in the jurisdictions in which the plants were situated. They asked the prosecutors to institute criminal proceedings against the members of the Council of Ministers and other relevant administrative authorities for failure to execute the court decisions. 39.  In a letter of 20 November 1996, the Ministry of Energy and Natural Resources informed the applicants that the operation of the three thermal power plants would not be halted. It was noted that the power plants were responsible for 7% of the country's total electricity production and that their contribution to the economy was estimated at around five hundred billion Turkish liras. The Ministry further argued that 4,079 people would lose their jobs and the region's tourist sector would be adversely affected if these plants were to cease to operate. It was further claimed that contracts had already been signed for the installation of new flue gas desulphurisation systems and that the necessary measures were therefore being taken to protect the environment and public health. 40.  On 27 November 1996 the Ankara Chief Public Prosecutor issued a decision not to prosecute the Prime Minister and other ministers, having regard to Article 100 of the Constitution which stipulated that the prosecution of these authorities would require a parliamentary investigation. 41.  On 25 December 1996 the Yatağan Chief Public Prosecutor issued a decision not to prosecute the director of the Yatağan thermal power plant, given that the Aydın Administrative Court's judgment had not been served on him, and that TEAŞ's directors were not responsible for taking action to comply with the court's judgment. 42.  On 12 March 1997 the Milas Chief Public Prosecutor issued a decision not to prosecute the directors of the Yeniköy and Gökova thermal power plants. The Chief Public Prosecutor stated that the directors of the power plants were merely implementing the Council of Ministers' decision of 3 September 1996 and that there were no grounds for considering that they were deliberately refusing to comply with the administrative courts' judgments. 43.  The applicants submitted a copy of nine judgments given by the Yatağan Magistrates' Court in civil matters (sulh hukuk mahkemesi). In these cases, brought against TEAŞ, the plaintiffs, who were farmers living in the vicinity of the Yatağan thermal power plant, alleged that the quality and quantity of their olive and tobacco production had been adversely affected by the poisonous gas and ash emitted by the power plant and that they had therefore suffered pecuniary damage (Files nos. 1998/80, 1998/81, 1999/68, 2000/225, 2000/226, 2000/499, 2001/72, 2001/73, 2001/76; and decisions nos. 1998/108, 1998/113, 1999/339, 2000/164, 2000/183, 2001/59, 2001/75, 2001/78, 2001/79). 44.  The Yatağan Magistrates' Court acceded to the plaintiffs' claims and awarded each of them compensation. Relying on expert reports on the plaintiffs' land, the court found that the hazardous gas emitted by the power plant had caused considerable damage to cultivation in the region, in that olive trees and tobacco plants suffered from incomplete leaf growth and were unable to produce a sufficient yield. 45.  The Court of Cassation upheld all nine judgments of the Yatağan Magistrates' Court.