A/RES/66/288 development since the adoption of Agenda 21 through legislation and institutions, and the development and implementation of international, regional and subregional agreements and commitments. 23. We reaffirm the importance of supporting developing countries in their efforts to eradicate poverty and promote empowerment of the poor and people in vulnerable situations, including removing barriers to opportunity, enhancing productive capacity, developing sustainable agriculture and promoting full and productive employment and decent work for all, complemented by effective social policies, including social protection floors, with a view to achieving the internationally agreed development goals, including the Millennium Development Goals. 24. We express deep concern about the continuing high levels of unemployment and underemployment, particularly among young people, and note the need for sustainable development strategies to proactively address youth employment at all levels. In this regard, we recognize the need for a global strategy on youth and employment building on the work of the International Labour Organization. 25. We acknowledge that climate change is a cross-cutting and persistent crisis, and express our concern that the scale and gravity of the negative impacts of climate change affect all countries and undermine the ability of all countries, in particular, developing countries, to achieve sustainable development and the Millennium Development Goals, and threaten the viability and survival of nations. Therefore, we underscore that combating climate change requires urgent and ambitious action, in accordance with the principles and provisions of the United Nations Framework Convention on Climate Change. 26. States are strongly urged to refrain from promulgating and applying any unilateral economic, financial or trade measures not in accordance with international law and the Charter that impede the full achievement of economic and social development, particularly in developing countries. 27. We reiterate our commitment, expressed in the Johannesburg Plan of Implementation, the 2005 World Summit Outcome and the outcome document of the High-level Plenary Meeting of the General Assembly on the Millennium Development Goals of 2010, to take further effective measures and actions, in conformity with international law, to remove the obstacles to the full realization of the right of self-determination of peoples living under colonial and foreign occupation, which continue to adversely affect their economic and social development as well as their environment, are incompatible with the dignity and worth of the human person and must be combated and eliminated. 28. We reaffirm that, in accordance with the Charter, this shall not be construed as authorizing or encouraging any action against the territorial integrity or political independence of any State. 29. We resolve to take further effective measures and actions, in conformity with international law, to remove obstacles and constraints, strengthen support and meet the special needs of people living in areas affected by complex humanitarian emergencies and in areas affected by terrorism. 30. We recognize that many people, especially the poor, depend directly on ecosystems for their livelihoods, their economic, social and physical well-being, and their cultural heritage. For this reason, it is essential to generate decent jobs and incomes that decrease disparities in standards of living in order to better meet people’s needs and promote sustainable livelihoods and practices and the sustainable use of natural resources and ecosystems. 6