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Countries | Solomon Islands

WHO / UNFCCC Climate & Health Profile 2020

National Context

Country Background

Solomon Islands is a scattered archipelago of over 900 small islands located in the ‘Ring of Fire’, the earthquake belt of the Pacific Region (1). Geographically, the islands are a combination of mountainous lands and low-lying coral atolls (2). Similar to other islands in the Pacific Region, the Solomon Islands are vulnerable to extreme weather events such as drought and flooding, which are associated with food and water shortage, flooding, and landslides (1). Other potential hazards include tropical cyclones, volcanic activity, earthquakes and tsunamis (1) that threaten public health, ecosystems and infrastructure. 

Recent trends have indicated increases in temperature, sea level rise, ocean acidification and coral bleaching associated with global climate change (3). This poses a risk to more than 80% of the population that resides in low-lying coastal areas (1). Accelerated coastal erosion and salinization of well water is an additional risk for several of the smaller, low-lying islands (1). 

Health risks of considerable concern include vector-borne diseases, respiratory diseases, waterborne and foodborne diseases, malnutrition, and noncommunicable diseases (4,5). Measures to address these health concerns include creating a national policy framework, capacity-building and institutional strengthening, and increased public awareness and education (1). 

The Solomon Islands face socioeconomic challenges that exacerbate existing vulnerabilities (1). In addition to being vulnerable to natural disasters and extreme events, other obstacles include a lack of access to electricity and roads for inland villages, limited government services, and political instability that make it difficult for government agencies to implement effective national programmes (1). 

Highest Priority Climate Sensitive Health Risks

Climate Hazards Relevant for Health

Climate Hazard Projections for Solomon Islands

Country-specific projections are outlined up to the year 2100 for climate hazards under a ‘business as usual’ high emissions scenario compared to projections under a ‘two-degree’ scenario with rapidly decreasing global emissions (see Figures 1–5). The climate model projections given below present climate hazards under a high emissions scenario, Representative Concentration Pathway 8.5 (RCP8.5 – in orange) and a low emissions scenario (RCP2.6 – in green). 1 1Model projections are from CMIP5 for RCP8.5 (high emissions) and RCP2.6 (low emissions). Model anomalies are added to the historical mean and smoothed.

The text describes the projected changes averaged across about 20 global climate models (thick line). The figures 2 2Analysis by the Climatic Research Unit, University of East Anglia, 2018. also show each model individually as well as the 90% model range (shaded) as a measure of uncertainty and the annual and smoothed observed record (in blue).3 3Observed historical record of mean temperature is from CRU-TSv3.26 and total precipitation is from GPCC. Observed historical records of extremes are from JRA55 for temperature and from GPCC-FDD for precipitation. In the following text the present-day baseline refers to the 30-year average for 1981–2010 and the end-of-century refers to the 30-year average for 2071–2100.

Modelling uncertainties associated with the relatively coarse spatial scale of the models compared with that of small island States are not explicitly represented. There are also issues associated with the availability and representativeness of observed data for such locations.

FIGURE 1: Mean annual temperature, 1900–2100

Under a high emissions scenario, mean annual temperature is projected to rise by about 2.9 ºC on average by the end-of-century (i.e. 2071–2100 compared with 1981–2010). If emissions decrease rapidly, the temperature rise is limited to about 0.8 ºC. 

FIGURE 2: Total annual precipitation, 1900–2100

Total annual precipitation is projected to increase by about 6% on average under a high emissions scenario, although the uncertainty range is large (-6% to +23%). If emissions decrease rapidly there is little projected change on average: an increase of 3% with an uncertainty range of -8% to +12%.

FIGURE 3: Percentage of hot days (‘heat stress’), 1900–2100

The percentage of hot days4 4A ‘hot day’ (‘hot night’) is a day when maximum (minimum) temperature exceeds the 90th percentile threshold for that time of the year.  is projected to increase substantially from about 15% of all observed days on average in 1981–2010 (10% in 1961–1990). Under a high emissions scenario, almost 100% of days on average are defined as ‘hot’ by the end-of-century. If emissions decrease rapidly, about 75% of days on average are ‘hot’. Note that the models tend to over-estimate the observed increase in hot days (by about 10% on average for 1981–2010). Similar increases are seen in hot nights (not shown). 

FIGURE 4: Contribution of very wet days (‘extreme rainfall’ and ‘flood risk’) to total annual rainfall, 1900–2100

Under a high emissions scenario, the proportion of total annual rainfall from very wet days5 5The proportion (%) of annual rainfall totals that falls during very wet days, defined as days that are at least as wet as the historically 5% wettest of all days (about 30% for 1981–2010) could increase a little by the end-of-century (to around 34% on average with an uncertainty range of about 15% to 50%), with less change if emissions decrease rapidly. These projected changes are accompanied by small projected increases in total annual rainfall (see Figure 2).

FIGURE 5: Standardized Precipitation Index (‘drought’), 1900–2100

The Standardized Precipitation Index (SPI) is a widely used drought index which expresses rainfall deficits/excesses over timescales ranging from 1 to 36 months (here 12 months, i.e., SPI12)6 6SPI is unitless but can be used to categorize different severities of drought (wet): above +2.0 extremely wet; +2.0 to +1.5 severely wet; +1.5 to +1.0 moderately wet; +1.0 to +0.5 slightly wet; +0.5 to -0.5 near normal conditions; -0.5 to -1.0 slight drought; -1.0 to -1.5 moderate drought; -1.5 to -2.0 severe drought; below -2.0 extreme drought.. It shows how at the same time extremely dry and extremely wet conditions, relative to the average local conditions, change in frequency and/or intensity. 

Under a high emissions scenario, SPI12 values are projected to increase from about -0.4 to about 0.1 on average by the end of the century (2071–2100), with a number of models indicating substantially larger increases and hence more frequent and/or intense wet episodes. Year-to-year variability remains large with dry episodes continuing to occur into the future.

Tropical cyclones

Tropical cyclones affect Solomon Islands mainly between November and April. An average of 29 cyclones per decade developed within or crossed the Solomon Islands Exclusive Economic Zone (EEZ) between the 1969/70 and 2010/11 seasons (see Figure 6). The interannual variability in the number of tropical cyclones in Solomon Islands EEZ is large (3).

FIGURE 6: Time series of the observed number of tropical cyclones developing within and crossing the Solomon Islands Exclusive Economic Zone. The 11-year moving average is in orange.

Sea level rise

Sea level rise is one of the most significant threats to low lying areas on small islands and atolls. Research indicates that global mean sea level rise rates are almost certainly accelerating as a result of climate change. A further 0.4-0.9m sea level rise is expected in the Solomon Islands by 2090 under a high emissions (RCP8.5) scenario (3). The relatively long response times to global warming mean that sea level will continue to rise for a considerable time after any reduction in emissions.

Potential impacts of sea level rise include:

  • Coastal erosion
  • Ecosystem disruption
  • Higher storm surges
  • Population displacement
  • Water contamination and disruption
  • Mental health

Health Impact of Climate Change

National Response

Health System Capacity and Adaptation: Monitoring Progress

The following section measures progress in the health sector in responding to climate threats based on country reported data collected in the 2021 WHO Health and Climate Change Country Survey (22).

Governance And Leadership

National Planning for Health and Climate Change

Question questioncategory question Answer
Has a national health and climate change strategy or plan been developed ? YES
Are the health co-benefits of climate change mitigation action considered in the strategy/plan? NO
Level of implementation of the strategy/plan? MODERATE
Portion of estimated costs to implement the strategy/plan covered in the health budget MINIMALLY
Are health adaptation priorities identified in the strategy/plan? YES
Notes
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A).
Definition: In this context, a national strategy or plan is a broad term that includes national health and climate strategies as well as the health component of national adaptation plans (H-NAPs).

Intersectoral Collaboration to Address Climate Change

Is there an agreement in place between the ministry of health and this sector which defines specific roles and responsibilities in relation to links between health and climate change policy?

Question questioncategory question Answer
Is there an agreement in place between the ministry of health and this sector which defines specific roles and responsibilities in relation to links between health and climate change policy? Transportation NO
Is there an agreement in place between the ministry of health and this sector which defines specific roles and responsibilities in relation to links between health and climate change policy? Electricity generation NO
Is there an agreement in place between the ministry of health and this sector which defines specific roles and responsibilities in relation to links between health and climate change policy? Household energy NO
Is there an agreement in place between the ministry of health and this sector which defines specific roles and responsibilities in relation to links between health and climate change policy? Agriculture NO
Is there an agreement in place between the ministry of health and this sector which defines specific roles and responsibilities in relation to links between health and climate change policy? Social services NO
Is there an agreement in place between the ministry of health and this sector which defines specific roles and responsibilities in relation to links between health and climate change policy? Water, Sanitation & Waste-water management NO
Notes
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A)
Yes = Specific roles and responsibilities between the national health authority and the sector indicated are defined in the agreement.

Vulnerability and Adaptation Assessments for Health

Question questioncategory question Answer
Has an assessment of health vulnerability and impacts of climate change been conducted at a national level? NO
→ Level of influence of the assessment findings on policy prioritization to address the health risks of climate change N/A
→ Level of influence of the assessment findings on human and financial resource allocation to address the health risks of climate change N/A
Notes
Table Legend:
Question 1: Yes (√) / No (X) / Unknown/Not applicable (N/A)
Questions 2 and 3: None, Minimal, Somewhat, Strong

Climate-sensitive diseases and health outcomes qid Health surveillance system is in place (a) Health surveillance system includes meteorological information (b)
Thermal stress (e.g. heat waves) 22111 NO NO
Vector-borne diseases 22121 YES YES
Foodborne diseases 22131 NO NO
Waterborne diseases 22141 YES NO
Nutrition (e.g. malnutrition associated with extreme-climatic events) 22151 YES
Injuries (e.g. physical injuries or drowning in extreme weather events) 22161 NO NO
Mental health and well-being 22171 YES NO
Airborne and respiratory diseases 22181 YES
Notes
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A)
(a) A positive response indicates that the health surveillance system is in place, it will identify changing health risks or impacts AND it will trigger early action.
(b) Meteorological information refers to either short-term weather information, seasonal climate information OR long-term climate information

Climate hazard qid Health early warning system (HEWS) in place? Health sector response plan in place? Health sector response plan includes meteorological information?
Heat waves 23111 YES NO NO
Storms (e.g. hurricanes, monsoons, typhoons) 23131 YES YES NO
Flooding 23141 YES YES NO
Drought 23161 YES YES NO
Air quality (e.g. particulate matter, ozone levels) 23171
Notes
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A)

Human Resource Capacity

Question questioncategory question Answer
Is there a national curriculum developed to train health personnel on the health impacts of climate change? NO
Does your human resource capacity as measured through the International Health Regulations Monitoring Framework (IHR) adequately consider the human resource requirements to respond to climate-related events? Partially
Notes
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A)

Health Care Facilities, Infrastructure and Technology

Question questioncategory question Answer
Has there been a national assessment of the climate resilience of health infrastructure and technology?
Have measures been taken to increase the climate resilience of health infrastructure and technology?
Is there a national initiative/programme in place to promote the use of low-carbon, energy-efficient, sustainable technologies in the health sector?
Notes:
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A)

Finance

Question questioncategory question Answer
Is your government currently accessing international funds to support climate change and health work? NO
Notes:
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A)

Funding Challenges

Greatest challenges faced in accessing international climate funds

Question questioncategory question Answer
Greatest challenges faced in accessing international climate funds Lack of information on the opportunities YES
Greatest challenges faced in accessing international climate funds Lack of country eligibility
Greatest challenges faced in accessing international climate funds Lack of connection by health actors to climate change processes YES
Greatest challenges faced in accessing international climate funds Lack of capacity to prepare country proposals YES
Greatest challenges faced in accessing international climate funds Lack of success in submitted applications
Greatest challenges faced in accessing international climate funds None (no challenges/challenges were minimal)
Greatest challenges faced in accessing international climate funds Not applicable
Greatest challenges faced in accessing international climate funds Other (please specify)
Notes:
Table Legend: Yes (√) / No (X) / Unknown/Not applicable (N/A)

Opportunities for Action

Institutionalize Climate Change in the Ministry of Health and Medical Services Organizational Structure

A division within the Ministry of Health and Medical Services with existing supportive legislation to include climate change and health as a core function, to oversee the implementation of the Solomon Islands National Climate Change and Health Adaptation Plan 2011 and to strengthen the weak collaboration within the health sector and with other sectors. Relevant climate change and health activities to be streamlined into respective department’s annual operational plan where relevant.

Strengthen Implementation of the Climate Change and Health Strategic Action Plan

The Ministry of Health and Medical Services has approved the National Climate Change and Health Adaptation Plan 2011. This plan is to be updated with inclusion of key performance indicators and specific budget requirements. It is to be aligned to the National Health Strategic Plan 2016–2020, the National Climate Change Policy 2012, the National Development Strategy 2016–2019 and the United Nations (UN) Sustainable Development Goals. However, implementation remains moderate. Main barriers to implementation have been identified as insufficient funding and a lack of adequate information systems and reporting with respect to health and climate change issues.

Assess Health Vulnerability, Impacts and Adaptive Capacity to Climate Change

Conduct a national assessment of climate change impacts, vulnerability and adaptation for health in collaboration with the Climate Change Division, Ministry of Environment, Climate Change and Disaster Management (MECCDM). Cover both community and health care facilities in the assessment and use results of the assessment for policy prioritization and allocation of resources.

Strengthen Integrated Risk Surveillance and Early Warning Systems

The current surveillance system to incorporate climate data, geographical and other relevant environmental data with the purpose of surveillance and early warning system for health. There is a need for human resources and institutional capacity-building for this purpose, including strengthening the National Public Health Laboratory to provide scientific support.

Address Barriers to Accessing International Climate Change Finance to Support Health Adaptation

Strengthen local policy, institutional, technical and knowledge capacities, to support preparation of a country proposal for specific funding. There must be ongoing dialogue between the health sector and potential funders in order to provide relevant information for funding purposes. A technical working group is to be established to drive resource mobilization for the health sector.

Include the Health Co-benefits of Mitigation and Adaptation Actions in the National Climate Change Policy Including Sector-specific Policies for Solomon Islands

The Ministry of Health and Medical Services to advocate for health co-benefits to be incorporated into the National Climate Change Policy and other sector-specific policies.

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