A/HRC/31/52 reduce emissions of greenhouse gases — can be expected to vary based on differing capabilities and conditions. Even in such cases, however, each State should do what it can. More precisely, consistent with article 2 (1) of the International Covenant on Economic, Social and Cultural Rights, each State should take actions “to the maximum of its available resources, with a view to achieving progressively the full realization of the rights recognized in the present Covenant by all appropriate means”. 49. Based on these general considerations, the following sections outline the human rights obligations relating to climate change. These obligations continue to be studied and clarified, and this report should not be taken as the final word on their content. In particular, it does not substitute for the more detailed analysis of particular human rights by mandate holders, treaty bodies, regional human rights bodies or others. Rather, the goal is to describe a framework for further elaboration. B. Procedural obligations 50. As the mapping report explains, human rights bodies agree that to protect against environmental harm that impairs the enjoyment of human rights, States have several procedural obligations, including duties: (a) to assess environmental impacts and make environmental information public; (b) to facilitate public participation in environmental decision-making, including by protecting the rights of expression and association; and (c) to provide access to remedies for harm. These obligations have bases in civil and political rights, but they have been clarified and extended in the environmental context on the basis of the entire range of human rights at risk from environmental harm (see A/HRC/25/53, paras. 29-43). They are also supported by provisions in international environmental instruments, including principle 10 of the 1992 Rio Declaration on Environment and Development. 1. Assessing and providing information 51. The Universal Declaration of Human Rights and the International Covenant on Civil and Political Rights provide that the right to freedom of expression includes the freedom to seek, receive and impart information. The right to information is also critical to the exercise of other rights, and human rights bodies have stated that to protect human rights from infringement through environmental harm, States should provide access to environmental information and provide for the assessment of environmental impacts that may interfere with the enjoyment of human rights. 52. At the international level, States have adopted an exemplary practice in the assessment and provision of information about climate change. Through the Intergovernmental Panel on Climate Change, States have provided for expert assessments of the scientific aspects of climate change, the vulnerability of socioeconomic and natural systems, and options for mitigation of and adaptation to climate change. By regularly publishing detailed reports summarizing the state of scientific and technical knowledge, the Panel has given Governments and people around the world information about the effects of climate change and the consequences of various approaches to addressing it. 53. States have also recognized the importance of undertaking assessments and providing information about climate change at the national level. Article 6 (a) of the United Nations Framework Convention on Climate Change requires its parties to promote and facilitate educational and public awareness programmes, as well as public access to information, and article 12 of the Paris Agreement calls on its parties to cooperate in taking 13