SDG Indicator 13.b.1 | Sustainable developments Goals

SDG Indicator 13.b.1: Number of least developed countries and small island developing States with nationally determined contributions, long-term strategies, national adaptation plans and adaptation communications, as reported to the secretariat of the United Nations Framework Convention on Climate Change

1. Key features and metadata

Definition: This indicator tracks the total number of Least Developed Countries (LDCs) and Small Island Developing States (SIDS) that have communicated their nationally determined contributions (NDCs), long-term strategies (LT-LEDs), national adaptation plans (NAPs), and adaptation communications to the Secretariat of the United Nations Framework Convention on Climate Change (UNFCCC).

Sub-indicator	Disaggregated by
EN_NACOM_NAIP_DV Number of least developed countries and small island developing States with national communications, non-Annex I Parties (Number)	Report ordinal
EN_BIUREP_NAIP_DV Number of least developed countries and small island developing States with biennial update reports, non-Annex I Parties (Number)
EN_ADAP_COM_DV Number of least developed countries and small island developing States with adaptation communications (Number)
EN_NAD_CONTR_DV Number of least developed countries and small island developing States with nationally determined contributions (Number)
EN_NAA_PLAN_DV Number of least developed countries and small island developing States with national adaptation plans (Number)	No current data disaggregation available.

Sub-indicator

Disaggregated by

EN_NACOM_NAIP_DV

Number of least developed countries and small island developing States with national communications, non-Annex I Parties (Number)

Report ordinal

EN_BIUREP_NAIP_DV

Number of least developed countries and small island developing States with biennial update reports, non-Annex I Parties (Number)

EN_ADAP_COM_DV

Number of least developed countries and small island developing States with adaptation communications (Number)

EN_NAD_CONTR_DV

Number of least developed countries and small island developing States with nationally determined contributions (Number)

EN_NAA_PLAN_DV

Number of least developed countries and small island developing States with national adaptation plans (Number)

No current data disaggregation available.

Sources of information: Reports communicated by the responsible national authorities of Parties to the UNFCCC and Paris Agreement to the UNFCCC Secretariat. Further analysis on linkages across other SDGs may be undertaken by the UNFCCC Secretariat.

Related SDG Indicator: 13.2.1 (Number of countries with nationally determined contributions, long-term strategies, national adaptation plans and adaptation communications, as reported to the secretariat of the United Nations Framework Convention on Climate Change).

2. Data availability by region, SDG Global Database, as of 02 July 2025

Data not available.

3. Proposed disaggregation, links to policymaking and its impact

Proposed disaggregation	Link to policymaking	Impact
Number of reports submitted out of total reports required by the Paris Agreement(UNFCCC 2008; UNFCCC 2013; UNFCCC n.d.a)	Each of the reports has its own purpose and requirements. This disaggregation highlights where obligations are fully met and where gaps remain, requiring additional measures to meet the reporting obligations of the Parties to the Paris Agreement (UN 2015b)and more ambitious plans in the next reporting round. This disaggregation is in line with the provisions of the Paris Agreement (UNFCCC 1992; UN 2015b)and the Global Stocktake (UNFCCC n.d.b).	Globally, the international community is off-track in achieving the Paris Climate objectives (UNFCCC 2022a). LDCs and SIDS national strategies and related measures must reflect the urgency and the importance of the threats that climate change poses to their populations, particularly the poor, women and youth who are the most vulnerable to climate change consequences. National implementations of the Paris Agreement through legislation, policies, programmes and interventions on the ground in LDCs and SIDS should lead to massive transformation throughout all sectors of society and the economy. This would help address the climate crisis,reinforce the resilience of the population, improve cooperation, provide additional climate finance, and enhance technology transfer and development (UNFCCC 2022a).
Support received by LDCs and SIDS by type of support (1=YES; 0=NO)(UNCTAD 2022): Financial Technical Capacity	The Paris Agreement sets out mechanisms for providing financial, technical and capacity building support to countries that need assistance in meeting their commitments under the Agreement (UN 2015b). This disaggregation helps Parties, in particular LDCs and SIDS, to identify their gaps and the type of aid they need to fill them. It also shows the international community and donors the kind of support they can offer to those countries. This disaggregation is in line with the provisions of the Paris Agreement (UNFCCC 1992; UN 2015b).	LDCs and SIDS are the most affected by the consequences of climate change and they lack the sufficient resources and capacities to face them adequately. This is where international aid and development cooperation can help them to fill their gaps (UNFCCC n.d.c). The information provided by this disaggregation can lead to beneficial impacts on the following issues. Firstly, LDCs and SIDS need financial aid to either mitigate or adapt to climate change. Secondly, LDCs and SIDs need to access the most advanced climate technologies, which are usually owned by developed countries, like drought-resistant crops, early warning systems,or E-mobility. Finally, LDCs and SIDS need support to strengthen their institutional and individual capacities to be in a position to deploy adequate climate policies and projects and to use effectively the funds and technologies made available to them.

Proposed disaggregation

Link to policymaking

Impact

Number of reports submitted out of total reports required by the Paris Agreement(UNFCCC 2008; UNFCCC 2013; UNFCCC n.d.a)

Each of the reports has its own purpose and requirements. This disaggregation highlights where obligations are fully met and where gaps remain, requiring additional measures to meet the reporting obligations of the Parties to the Paris Agreement (UN 2015b)and more ambitious plans in the next reporting round.

This disaggregation is in line with the provisions of the Paris Agreement (UNFCCC 1992; UN 2015b)and the Global Stocktake (UNFCCC n.d.b).

Globally, the international community is off-track in achieving the Paris Climate objectives (UNFCCC 2022a). LDCs and SIDS national strategies and related measures must reflect the urgency and the importance of the threats that climate change poses to their populations, particularly the poor, women and youth who are the most vulnerable to climate change consequences.

National implementations of the Paris Agreement through legislation, policies, programmes and interventions on the ground in LDCs and SIDS should lead to massive transformation throughout all sectors of society and the economy. This would help address the climate crisis,reinforce the resilience of the population, improve cooperation, provide additional climate finance, and enhance technology transfer and development (UNFCCC 2022a).

Support received by LDCs and SIDS by type of support (1=YES; 0=NO)(UNCTAD 2022):

Financial
Technical
Capacity

The Paris Agreement sets out mechanisms for providing financial, technical and capacity building support to countries that need assistance in meeting their commitments under the Agreement (UN 2015b).

This disaggregation helps Parties, in particular LDCs and SIDS, to identify their gaps and the type of aid they need to fill them. It also shows the international community and donors the kind of support they can offer to those countries.

This disaggregation is in line with the provisions of the Paris Agreement (UNFCCC 1992; UN 2015b).

LDCs and SIDS are the most affected by the consequences of climate change and they lack the sufficient resources and capacities to face them adequately. This is where international aid and development cooperation can help them to fill their gaps (UNFCCC n.d.c). The information provided by this disaggregation can lead to beneficial impacts on the following issues.

Firstly, LDCs and SIDS need financial aid to either mitigate or adapt to climate change. Secondly, LDCs and SIDs need to access the most advanced climate technologies, which are usually owned by developed countries, like drought-resistant crops, early warning systems,or E-mobility. Finally, LDCs and SIDS need support to strengthen their institutional and individual capacities to be in a position to deploy adequate climate policies and projects and to use effectively the funds and technologies made available to them.