A/67/299 different tiers of policymakers, from the local level to the national level. Importantly, these different levels of governance will need to act in coordination and cooperation if policy responses are to address the complexity of the issue effectively. 73. Given the multiplicity of locales which are affected by the issue, it is also useful to distinguish between the situation of States concerned by internal climatechange-induced migration, States of origin and States of destination of international climate-change-induced migration, and all States. 74. For countries concerned by internal climate-change-induced migration (and, within States, for local governments), States must ensure that climate-changeinduced migrants are not discriminated against; their rights should be guaranteed like those of all other citizens. States should not infringe on the human rights of climate-change-induced migrants by preventing them from moving within the State or by restricting their choice of residence (International Covenant on Civil and Political Rights, art. 12 (1)). States concerned by internal climate-change-induced migration also have the obligation to take specific actions to ensure that individuals within their jurisdiction enjoy the benefit of their rights. It is a well-settled principle under human rights law that equality does not only mean that analogous situations should receive the same treatment, but also that dissimilar situations should receive, if necessary, differentiated treatments. Climate-change-induced migrants are more vulnerable because of a lack of social structure, possible linguistic disadvantage, and health fragility due to the displacement. The specific needs of climate-changeinduced migrants should be recognized and dealt with through specific programmes. Furthermore, States must take specific measures to allow arriving climate-changeinduced migrants to best adapt to the community of destination. This includes in particular urban planning: whenever a city is bound to a quick and massive growth of its population, infrastructures should accordingly be developed to ensure that all individuals (newcomers and previous inhabitants) maintain a dignified life (see report of the Special Rapporteur on the human rights of internally displaced persons (A/66/285)). 75. For States of origin of international climate-change-induced migration, it is important to recall that States cannot prevent their population from moving to another State (International Covenant on Civil and Political Rights, art. 12 (2)). Furthermore, in no case should a State prevent a national from returning to their country (International Covenant on Civil and Political Rights, art. 12 (4)). At the same time, there is the obligation on these States to provide necessary education and training for future migrants to be able to adapt to a new society. In particular, States of origin may engage in bilateral policies of circular migration, allowing individuals to get training abroad and thus facilitating the migratory process. Yet, States of origin should at no time force individuals to leave their country, but should strive to allow in situ adaptation as long as possible. They should protect individuals who decide not to move. The Special Rapporteur notes, however, that circular migration policies must be designed to respect human rights and be responsive also to the needs of climate-change-induced migrants, and not only to labour market imperatives, which can in fact operate to exacerbate migrants’ vulnerability and increase irregular migration. 76. States of destination of international climate-change-induced migration have the obligation not to discriminate but to engage in specific policies to ensure the real 18 12-46071