The National Adaptation Plan Global Support Programme (NAP-GSP) is a joint UNDP-UN Environment programme to assist developing countries to advance National Adaptation Plans (NAPs). The NAP-GSP has been set up to assist countries to bring greater focus and attention to medium and long-term climate change adaptation planning as well as budgeting.
The NAPs process was established under the Cancun Adaptation Framework (2010) in order to prepare countries for addressing climate risk in the medium term. The main objectives of the NAPs are to reduce vulnerability to climate change, and to mainstream climate change adaptation in all levels of planning.  The NAPs are not a one-off investment. The process is intended to be continuous, progressive and iterative. NAPs require building a stronger evidence base, improving skills and capacity and adopting learning by doing approaches. NAPs need to be country-driven, gender-sensitive, participatory and use transparent approaches.
UNDP and UN Environment have been supporting developing countries on NAPs through the NAP-GSP since 2013, through a portfolio of initiatives in partnership with development partners.
The main areas of work are:
1) Assisting countries to think through what it means to integrate climate into planning and budgeting and develop a plan of action that specifies what needs to be done and resources required.
2) Providing in-country and virtual support on stocktaking of capacity gaps and needs as well as of ongoing adaptation plans and activities to identify entry points for NAP support. UNDP and UN Environment - together wth programme partners - training on  the NAP process for multi-stakeholder groups; economics of adaptation; and understanding climate information in the context of development planning
3) Assisting countries to integrate vulnerable sectors, thematic areas, sub-national approaches and legal issues into adaptation planning and budgeting by supporting sectoral and cross-sectoral stock-taking, assessments and application of appropriate tools and guidelines.