Public International Funding of Nature-Based Solutions for Adaptation: A Landscape Assessment

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2. THE CURRENT FUNDING LANDSCAPE

This assessment uses the Creditor Reporting System (CRS) database of the Organisation for Economic Co-operation and Development (OECD) to estimate a range (lower and upper bound) of public international funding for NbSA using 2012, 2015, and 2018 data sets of project commitments. The methodology for this assessment is described below and is further detailed in Appendix A, which describes which OECD data codes were used, how the methodology filtered out commitments for NbS that may not be for adaptation activities, and other issues.

Estimates are based on the OECD’s CRS database. All CRS projects are classified by sector, and some are tagged with the Rio markers (which indicate either the primary or significant intent of the funding, such as mitigation, adaptation, or biodiversity). Although sector classifications are exclusive—a funding flow cannot be tagged with more than one sector—markers are not exclusive, meaning funding flows can be tagged with more than one marker.

As a result, our lower-bound estimates represent a narrower assessment of funding flows for NbSA but do not include funding from and through the multilateral channels, such as multilateral development banks (MDBs) or climate funds, due to how multilateral data is reported to the OECD. Our upper-bound estimates represent a broader assessment that loosens restrictions on both sectors and Rio marker tags; as a result, they may include some funding that does not primarily support NbSA objectives.

Please see Appendix A for a full description of the methodology used in this paper. In addition, Box 3 describes the limitations of the methodology.

Box 3 | The Limitations of the Methodology

This paper does not capture flows beyond official development assistance (ODA) and nonconcessional development finance, such as domestic public financing and private financing; thus, the estimates provided herein are certainly an underestimate of the total flows for nature-based solutions for adaptation (NbSA).

Due to challenges in the available data sources, the information is only representative of the specific Organisation for Economic Co-operation and Development (OECD) data set used for this analysis. The methodology estimates

  • general funding trends;
  • top donor and recipient regions; and
  • countries and uses (sectors).

There are likely investments in specific sectors (e.g., forests) that may include adaptation cobenefits and elements but may not have been reported or captured as NbSA. These issues may be further compounded because NbSA—and adaptation more broadly—often cuts across sectors; thus, the reporting and categorization of funding for NbSA is challenging. Also, there is likely a portion of NbS-related funding that, although principally focused on biodiversity conservation and/or climate mitigation, may have unreported adaptation elements or insufficiently assessed adaptation benefits that are thus not captured in this analysis.

The information presented shows only data reported within the OECD and therefore may miss funding provided through or by some donors or funding institutions (such as the World Bank) that are not included in the system. For this reason, it likely underestimates public NbSA flows.

In sum, the constraints on the methodology reflect the limitations of the data sets available as well as definitional and reporting challenges that affect both NbS and adaptation finance writ large.

2.1 The Public international Funding Landscape

It is estimated that in 2018, public donor finance for NbSA accounted for, conservatively, approximately 0.6 percent of total climate finance flows, 1.5 percent of public climate finance flows, and 9.0 percent of overall adaptation flows (Figure 3).9

Figure 3 | Estimated ODA for NbSA in the Context of Total Climate Finance Flows in 2018

Note: The $42bn adaptation finance estimate refers to both adaptation-specific flows and those that have dual adaptation and mitigation benefits.

Source: Buchner et al. 2019.

Figure 4 provides an overview of the landscape of NbSA funding in 2018, highlighting the largest funders and channels for NbSA.

Figure 4 | The Landscape of ODA for NbSA Funding, 2018 (US$, millions)

Note: UB = Upper Bound, LB = Lower Bound

Source: Based on raw data from OECD.Stat database, Creditor Reporting System, modified by the authors.

As shown below in Table 1 and Figure 5, tracked public funding for NbSA has increased over the years analyzed, from $2.1–$4.1 billion in 2012 to $3.8–$8.7 billion in 2018. For the years analyzed, the top ODA funders of NbSA were also among the top adaptation funders overall. Germany and the United Kingdom contributed significantly to the increase in ODA for NbSA funding between 2012 and 2018 (see Figure 6). Notably, a significant proportion (over 50 percent) of Germany’s ODA in the analyzed sectors was for NbSA initiatives.

Table 1 | ODA Funding for NbSA (US$, millions)

Donor

2012

2015

2018

Bilateral

Germany

420–550

730–1,050

920–1,510

United Kingdom

0–70

210–400

850–890

Sweden

90–160

100–130

260–360

Japan

330–590

20–470

230–450

United States

290–430

180–350

110–220

Multilateral

Asian Development Bank

-

-

0–1,580

European Union institutions

380–750

340–1,000

790–1,560

Green Climate Fund

-

0–40

0–460

International Fund for Agricultural Development

-

0–460

0–250

Global Environment Facility

-

0–110

0–180

Adaptation Fund

0–40

0–50

0–55

Total of all ODA funding for NbSA

2,130–4,170

2,690–6,230

3,750–8,700

Note: NbSA = nature-based solutions for adaptation; ODA = official development assistance.

Source: Based on raw data from OECD.Stat database, Creditor Reporting System, modified by the authors.

The lower bound estimates for multilateral organizations are assumed to be zero because these organizations did not use the biodiversity Rio marker. As noted in Box 3, the information presented includes only data reported within the OECD. As such, it may miss funding provided through or by some donors (bilateral or multilateral sources), and it may underreport some sources, such as the Global Environment Facility (GEF), for the years assessed.10

In fact, the MDBs, including the World Bank, Inter-American Development Bank (IDB), European Bank for Reconstruction and Development, and others, typically support NbSA. However, these institutions may be reporting NbSA projects under different categories, or they may not be reporting as comprehensively to show a full picture of the landscape of funding flowing from these organizations. Also, given the recent rise in interest in NbSA, a landscape assessment for 2020 might include a wider range of bilateral and multilateral funders.

For more details on how the upper and lower bounds were constructed, please see Appendix A.

2.2 Key Funding Modalities for NbSA

For the three years analyzed, up to 85 percent of all tracked funding was categorized as ODA grants, and those that are categorized by the OECD as ODA loans are deemed “concessional,” implying a significant grant-equivalent component (see Table 2).

Table 2 | Funding Modalities

Modality

2012 (%)

2015 (%)

2018 (%)

ODA grants

79–80

64–65

67–85

ODA loans

20–21

29–34

11–14

Othera

NA

0–7

1–22

Notes: ODA = official development assistance.

a. Includes other official flows (nonexport credit), equity investments, and private development finance (refers to philanthropies and nongovernmental organizations). Other official flows are defined as official sector transactions that do not meet ODA criteria, such as criteria for concessionality.

Source: Based on raw data from OECD.Stat database, Creditor Reporting System, modified by the authors.

2.3 Recipients and Uses of Funding

2.3.1 Recipients

The top regions for tracked ODA funding for NbSA in 2018 were Sub-Saharan Africa, Latin America and the Caribbean, and South and Central Asia (see Table 3 and Figure 7). A large proportion of ODA funding does not specify the recipient country or region, indicating that significant amounts of funding flow through bilateral or multilateral multicountry programs (classified as going to “unspecified developing countries” by the OECD).

Table 3 | Funding Received by Region and Country (US$, millions)

Regions

2012

2015

2018

Sub-Saharan Africa

370–900

1,110–2,020

1,670–2,880

Latin America and the Caribbean

490–630

650–1,000

510–930

South and Central Asia

260–590

230–920

370–1,740

East Asia and the Pacific

480–900

230–750

300–1,140

Europe

25–150

45–390

80–320

Middle East and North Africa

120–210

170–280

30–270

Unspecified developing countries

380–790

240–870

790–1,420

Source: Based on raw data from OECD.Stat database, Creditor Reporting System, modified by the authors.

See Appendix A for a breakdown of the regions by country.

2.3.2 Uses of Funding

Biodiversity, general environmental protection, and agriculture are the top three NbSA-related sectors by estimated volume of funding tracked in 2018 (see Figure 8).11

For all of the graphs below, the solid line represents the upper bound, and the dashed line represents the corresponding lower bound.

Figure 5 | Total ODA Funding Flows to NbSA

Figure 6 | ODA NbSA Funding Flows from Top Donors

Figure 7 | ODA NbSA Funding Flows to Top Regions

Figure 8 | ODA NbSA Funding Flows into Selected Sectors (Lower-Bound Only)

Notes: DRR = disaster risk reduction; LAC = Latin America and the Caribbean; NbSA = nature-based solutions for adaptation; ODA = official development assistance.

Source: Based on raw data from OECD.Stat database, Creditor Reporting System, modified by the authors.

2.4 International Funding Channels

The primary funding channels listed for NbSA (as for adaptation in general) include generalist and specialist multilateral climate funds and MDBs as well as NbS-specific facilities. It should be noted that the figures for a fund’s “estimated amounts available” are for the entire fund and are thus indicative only; for some funds in Table 4, these estimated amounts are unlikely to be solely for NbSA. (Please see Table 4 for a listing with their modalities.)

Table 4 | List of Funds That Finance NbSA-Eligible Activities

Notes: a. Refers to water resources and water security; b. G = grants, CF = concessional finance; c. IFAD is an executing agency of the GEF and GCF; d. ASEAN = Association of Southeast Asian Nations; e. Using a euro to U.S. dollar conversion rate of 1:1.172.

Source: The authors.

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