A/RES/54/147 Page 5 20. Welcomes the programmes carried out by the Office of the High Commissioner with host Governments, the United Nations, non-governmental organizations and the international community to address the environmental impact of refugee populations; 21. Calls upon the international donor community to provide material and financial assistance for the implementation of programmes intended for the rehabilitation of the environment and infrastructure affected by refugees in countries of asylum; 22. Expresses its concern about the long stay of refugees in certain African countries, and calls upon the Office of the High Commissioner to keep its programmes under review, in conformity with its mandate in the host countries, taking into account the increasing needs of refugees; 23. Emphasizes the need for the Office of the High Commissioner to collate statistics, on a regular basis, on the number of refugees living outside refugee camps in certain African countries, with a view to evaluating and addressing the needs of those refugees; 24. Urges the international community, in a spirit of international solidarity and burden-sharing, to continue to fund generously the refugee programmes of the Office of the High Commissioner and, taking into account the substantially increased needs of programmes in Africa, to ensure that Africa receives a fair and equitable share of the resources designated for refugees; 25. Requests all Governments and intergovernmental and non-governmental organizations to pay particular attention to meeting the special needs of refugee women and children and displaced persons, including those with special protection needs; 26. Calls upon States and the Office of the High Commissioner to make renewed efforts to ensure that the rights, needs and dignity of elderly refugees are fully respected and addressed through appropriate programme activities; 27. Expresses grave concern about the plight of internally displaced persons in Africa, calls upon States to take concrete action to pre-empt internal displacement and to meet the protection and assistance needs of internally displaced persons, takes note in this regard of the Guiding Principles on Internal Displacement,9 and urges the international community, led by relevant United Nations organizations, to contribute generously to national projects and programmes aimed at alleviating the plight of internally displaced persons; 28. Requests the Secretary-General to submit a comprehensive report on the situation of refugees, returnees and displaced persons in Africa to the General Assembly at its fifty-fifth session, taking fully into account the efforts expended by countries of asylum, under the item entitled “Report of the United Nations 9 E/CN.4/1998/53/Add.2, annex. /...