A/HRC/45/42 the role of national human rights institutions in addressing climate change as a transboundary human rights issue. Ten national human rights institutions participated in the dialogue in order to develop a common understanding on the impact of climate change on human rights and to identify good practices and areas of cooperation. 4. Europe and Central Asia 70. In October 2019, in Brussels, OHCHR organized a regional conference on protecting civic space in the European Union. The European Network of National Human Rights Institutions and the national human rights institutions of Belgium, Croatia and Poland shared their experiences and best practices on support mobilization, and on addressing reprisals, intimidation, hate speech and defamation. 71. In October 2019, pursuant to Human Rights Council resolution 34/17, OHCHR organized a workshop in Geneva on the role of regional arrangements in combating racism, racial discrimination, xenophobia and related intolerance and in the implementation of the Durban Declaration and Programme of Action. National human rights institutions discussed the effectiveness of national measures in combating racism and shared good practices and challenges in that regard. 72. In November 2019, OHCHR participated in the 2019 annual conference of the European Network of National Human Rights Institutions in Brussels. OHCHR emphasized the indivisibility of human rights and their integration into the 2030 Agenda, as well as the role of national human rights institutions in supporting governments to enact legislation and policies in line with international human rights law. 73. In December 2019, OHCHR participated in the national human rights congress in Warsaw. It highlighted the role of national human rights institutions in monitoring the implementation of recommendations emanating from the international human rights system. 5. Middle East and North Africa 74. In February 2020, in Doha, OHCHR co-organized, with the National Human Rights Committee of Qatar, the Global Alliance of National Human Rights Institutions, the European Parliament and the International Federation of Journalists, an international conference on social media and challenges, and ways to promote freedom of expression and protect activists. The conference brought together over 250 governmental and nongovernmental organizations, human rights defenders, media workers, information technology business representatives, international human rights mechanisms and national human rights institutions. Participants discussed the opportunities that social media had created for protecting and promoting human rights, while raising recurrent forms of interference in the use of social media. C. 1. Contributions to international initiatives supporting national human rights institutions Global Alliance of National Human Rights Institutions 75. Article 6 of the statute of the Global Alliance of National Human Rights Institutions provides that general and Bureau meetings, meetings of the Subcommittee on Accreditation and international conferences of the Global Alliance are to be held under the auspices of, and in cooperation with, OHCHR. Hence, during the period under review, OHCHR provided financial and substantive support, as well as secretariat services, to the Global Alliance for the sessions held by its Subcommittee on Accreditation (see para. 76 below), and its Bureau meeting, convened in November 2019. 2. Subcommittee on Accreditation 76. OHCHR continued to provide substantive support, including technical advice and secretariat services, to the Subcommittee on Accreditation. During the reporting period, the Subcommittee met once, in October 2019, and reviewed 13 institutions. The Subcommittee 10