SDGs 13 14 15

Class Note on SDG 13, SDG 14, and SDG 15

Climate Action, Life Below Water, and Life on Land

Introduction

The Sustainable Development Goals (SDGs) are a collection of 17 global goals adopted by the United Nations in 2015 as part of the 2030 Agenda for Sustainable Development. These goals aim to address major global challenges such as poverty, inequality, environmental degradation, climate change, peace, and justice. Among these goals, SDG 13 (Climate Action), SDG 14 (Life Below Water), and SDG 15 (Life on Land) focus specifically on environmental sustainability and the protection of the Earth’s ecosystems. These goals recognize that human survival and development depend heavily on healthy environmental systems, including the atmosphere, oceans, forests, wildlife, and biodiversity. Environmental degradation has become a major concern globally due to industrialization, deforestation, pollution, overfishing, desertification, and greenhouse gas emissions. Climate change is increasing global temperatures and causing extreme weather events such as floods, droughts, and heat waves, as well as rising sea levels. Marine ecosystems are threatened by plastic pollution, oil spills, and unsustainable fishing practices, while terrestrial ecosystems are being destroyed by deforestation, habitat loss, and land degradation. For developing countries such as Nigeria, these environmental challenges affect food security, public health, economic growth, agriculture, and livelihoods. Therefore, achieving SDGs 13, 14, and 15 is essential for sustainable development.

SDG 13: Climate Action

Climate action refers to efforts aimed at combating climate change and mitigating its impacts. Climate change is primarily driven by increased concentrations of greenhouse gases—such as carbon dioxide, methane, and nitrous oxide—in the atmosphere, largely resulting from human activities including the burning of fossil fuels, industrial production, transportation, and deforestation. As a result, SDG 13 calls for urgent global action to reduce emissions, strengthen resilience to climate-related hazards, and enhance awareness and institutional capacity for effective climate management. The effects of climate change are already evident worldwide. Rising global temperatures, shifting weather patterns, increasing sea levels, and more frequent extreme weather events are disrupting economies and threatening human health and livelihoods. Notably, 2019 was recorded as the second warmest year, concluding the warmest decade (2010–2019) in history. This trend is further reflected in record-high levels of carbon dioxide and other greenhouse gases during the same period.

Although global greenhouse gas emissions were projected to decrease by approximately 6 percent in 2020 due to reduced economic activity during the COVID-19 pandemic, this decline was temporary. As economies recover, emissions are expected to rise again, highlighting the need for sustained and long-term climate action. In response to this global challenge, the Paris Agreement, adopted in 2015, aims to limit global temperature increase to well below 2°C above pre-industrial levels. It also seeks to strengthen countries’ capacity to adapt to climate impacts through financial support, technological innovation, and enhanced capacity-building initiatives. Ultimately, achieving meaningful progress requires coordinated international efforts and sustained commitment to climate action.

Saving lives and livelihoods requires urgent action to address both the pandemic and the climate emergency. The Paris Agreement, adopted in 2015, aims to strengthen the global response to the threat of climate change by keeping a global temperature rise this century well below 2 degrees Celsius above pre-industrial levels. The agreement also aims to strengthen countries' ability to deal with the impacts of climate change through appropriate financial flows, a new technology framework, and an enhanced capacity-building framework.

Causes of Climate Change

1. Burning of Fossil Fuels: The use of coal, oil, and natural gas for electricity, transportation, and industries releases greenhouse gases into the atmosphere.

2. Deforestation: Trees absorb carbon dioxide. Cutting down forests reduces the Earth’s ability to absorb greenhouse gases.

3. Industrial Activities: Factories and industries emit gases and pollutants that contribute to global warming.

4. Agricultural Activities: Livestock farming and fertilizer use release methane and nitrous oxide into the atmosphere.

5. Waste Disposal: Improper waste management and landfill activities produce harmful gases.

Effects of Climate Change

1. Rising Global Temperatures: Average global temperatures are increasing, causing heat waves and changing weather patterns.

2. Flooding: Heavy rainfall and rising sea levels increase the occurrence of floods.

3. Desertification: Dry regions become more barren due to prolonged droughts and land degradation.

4. Food Insecurity: Climate change affects agriculture by reducing crop yields and livestock productivity.

5. Loss of Biodiversity: Many plant and animal species are unable to adapt to changing environmental conditions.

6. Health Problems: Climate change contributes to diseases, heat stress, malnutrition, and poor air quality.

Targets of SDG 13

Target

Description

Official Indicator(s)

Example of Indicator in Practice

13.1

Strengthen resilience and adaptive capacity to climate-related hazards and natural disasters.

13.1.1 Number of deaths, missing persons, and directly affected persons attributed to disasters per 100,000 population. 13.1.2 Number of countries that adopt and implement national disaster risk reduction strategies. 13.1.3 Proportion of local governments that adopt and implement local disaster risk reduction strategies.

A reduction in flood-related deaths in Nigeria due to improved early warning systems. Nigeria implementing a national disaster management framework through the National Emergency Management Agency (NEMA). Local governments developing flood response and evacuation plans.

13.2

Integrate climate change measures into national policies, strategies, and planning.

13.2.1 Number of countries with nationally determined contributions (NDCs), long-term strategies, national adaptation plans, or similar climate policies.

Nigeria incorporating climate adaptation and mitigation strategies into its National Climate Change Policy and submitting updated NDCs under the Paris Agreement.

13.3

Improve education, awareness, and institutional capacity on climate change mitigation, adaptation, impact reduction, and early warning.

13.3.1 Extent to which education for sustainable development and climate change education are integrated into curricula, teacher education, and student assessment. 13.3.2 Number of countries that have communicated strengthening of institutional, systemic, and individual capacity-building for climate action.

Universities offering climate change courses and sustainability programs. Secondary schools including climate change topics in geography and environmental science. Government agencies training officials on climate risk management.

13.a

Implement the commitment by developed countries to mobilize financial resources to assist developing countries in climate action.

13.a.1 Amount of climate finance mobilized annually (in US dollars) toward the commitment of supporting developing countries.

International climate funds supporting solar energy projects in Nigeria. Grants from the Green Climate Fund used for climate adaptation and renewable energy initiatives.

13.b

Promote mechanisms for raising capacity for effective climate change-related planning and management in least developed countries and vulnerable communities.

13.b.1 Number of least developed countries and small island developing states receiving specialized support, including mechanisms for increasing capacity for climate planning and management.

Training programs that help vulnerable communities develop climate adaptation plans. International support for drought management and flood preparedness projects in vulnerable regions.

Climate Change Mitigation and Adaptation Strategies

Mitigation refers to actions aimed at reducing greenhouse gas emissions in order to slow down climate change. Examples of mitigation strategies include the use of renewable energy sources such as solar and wind power to reduce dependence on fossil fuels. Afforestation and reforestation help increase the number of trees that absorb carbon dioxide from the atmosphere. Other measures include energy conservation, sustainable transportation systems, reduction of industrial emissions, and waste recycling, all of which contribute to lowering overall emissions.

In addition to mitigation, adaptation refers to adjustments made to cope with the effects of climate change. These strategies aim to reduce vulnerability to climate-related risks and hazards. Examples include the construction of flood control and drainage systems to prevent flooding, climate-smart agriculture to improve food security under changing conditions, early warning systems to prepare for extreme weather events, and the use of drought-resistant crops to withstand prolonged dry periods.

SDG 13 and Nigeria

Nigeria faces several climate-related challenges that significantly affect its environment and population. These include frequent flooding in coastal and riverine areas, desertification in northern regions, irregular rainfall patterns, erosion, and increasing heat waves. Some of its challenges include:

Flooding in Bayelsa and Lagos States (2022): Severe flooding affected multiple states, particularly Bayelsa State and parts of Lagos. In Bayelsa, entire communities were submerged, leading to displacement, loss of farmland, and damage to infrastructure. In Lagos, areas such as Lekki experienced flooding due to rising sea levels and poor drainage systems. These events highlight the increasing intensity of climate-related disasters.

Desertification in Northern Nigeria (Sokoto, Borno, Yobe): Northern states have experienced advancing desert conditions due to prolonged drought and poor land management practices. In states like Borno and Yobe, this has reduced agricultural productivity, worsened food insecurity, and contributed to migration and conflict over scarce resources.

Gully Erosion in Anambra and Imo States: Southeastern Nigeria faces severe soil erosion, especially in Anambra State (e.g., Agulu-Nanka erosion sites). These gullies have destroyed homes, roads, and farmlands, displacing communities and increasing poverty levels.

Landslide in Southeastern and Southwestern Nigeria (e.g., Abia and Enugu States[SE] Cross River and Akwa Ibom [SS]): Landslides have occurred in parts of southeastern Nigeria due to heavy rainfall, deforestation, and unstable soil structures. These events often result in the collapse of land, destruction of buildings, and loss of lives and livelihoods. They also worsen existing erosion problems in the region. Additionally, parts of Cross River State, particularly in hilly areas such as Obudu and Ikom, have experienced landslides due to heavy rainfall, deforestation, and soil instability. Similarly, in Akwa Ibom State, intense rainfall and land degradation have contributed to slope failures and erosion-related land collapses. These landslides can destroy homes, damage roads, and threaten lives, especially in rural communities. They also highlight the combined effects of climate change and poor land management practices.

Government Efforts and Responses

In response to these challenges, the Nigerian government has introduced several initiatives:

• Promotion of renewable energy projects such as solar power systems to reduce dependence on fossil fuels

• National tree planting campaigns to combat deforestation and desertification

• Development of climate change policies, including the National Climate Change Policy

• Participation in international agreements such as the Paris Agreement

Case Studies of Climate Action Efforts

• Nigeria Erosion and Watershed Management Project (NEWMAP):

This government-supported programme has successfully addressed erosion issues in southeastern states, particularly in Anambra. It involves land stabilisation, drainage construction, and community engagement to reduce environmental degradation.

• Great Green Wall Initiative (Northern Nigeria):

Nigeria is part of this African-led project aimed at combating desertification by planting trees across the Sahel region. In states like Katsina and Borno, the initiative has helped restore degraded land and improve livelihoods.

• Solar Electrification Projects in Rural Areas:

Programmes such as the Rural Electrification Agency (REA) initiatives have introduced solar mini-grids in communities, especially in northern Nigeria, providing clean energy and reducing reliance on diesel generators.

SDG 14: Life Below Water

Meaning of Life Below Water

SDG 14 focuses on conserving and sustainably using oceans, seas, and marine resources. Oceans cover over 70% of the Earth’s surface and are essential for food supply, transportation, climate regulation, and economic activities.

Marine ecosystems include:

• Oceans

• Seas

• Coral reefs

• Mangroves

• Fish species

• Marine plants

Human activities have negatively affected marine ecosystems through pollution, overfishing, and habitat destruction.

Importance of Marine Ecosystems

1. Source of Food

Millions of people depend on fish and seafood for nutrition.

2. Economic Activities

Fishing, tourism, shipping, and oil exploration generate income and employment.

3. Climate Regulation

Oceans absorb carbon dioxide and help regulate global temperatures.

4. Biodiversity

Marine ecosystems contain diverse species of plants and animals.

Challenges Facing Marine Ecosystems

1. Marine Pollution

Plastic waste, sewage, and oil spills contaminate water bodies.

2. Overfishing

Excessive fishing reduces fish populations and threatens marine biodiversity.

3. Ocean Acidification

Increased carbon dioxide absorption changes ocean chemistry and harms marine organisms.

4. Destruction of Coastal Habitats

Mangroves and coral reefs are destroyed by construction and pollution.

5. Illegal Fishing

Unregulated fishing activities threaten marine sustainability.

Targets of SDG 14

Target

Description

14.1

Reduce marine pollution

14.2

Protect marine and coastal ecosystems

14.3

Minimize ocean acidification

14.4

Regulate harvesting and end overfishing

14.5

Conserve coastal and marine areas

14.7

Increase economic benefits from sustainable marine resources

Ways to Protect Marine Ecosystems

1. Proper Waste Disposal

Reducing plastic waste and preventing dumping into water bodies.

2. Sustainable Fishing

Fishing regulations should prevent overexploitation of marine species.

3. Marine Protected Areas

Governments can establish protected zones to conserve marine biodiversity.

4. Public Awareness

Educating people on the importance of oceans and marine conservation.

5. Pollution Control

Industries should treat waste before releasing it into water bodies.

SDG 14 and Nigeria

Nigeria’s coastal areas along the Atlantic Ocean are important for:

• Fishing

• Transportation

• Oil production

• Tourism

However, challenges include:

• Oil spills in the Niger Delta

• Water pollution

• Illegal fishing

• Coastal erosion

Efforts to address these issues include:

• Environmental regulations

• Coastal management programs

• Marine conservation initiatives

SDG 15: Life on Land

Meaning of Life on Land

SDG 15 aims to protect, restore, and promote sustainable use of terrestrial ecosystems. It also seeks to manage forests sustainably, combat desertification, halt land degradation, and stop biodiversity loss.

Terrestrial ecosystems include:

• Forests

• Grasslands

• Mountains

• Wetlands

• Wildlife habitats

Healthy land ecosystems are essential for agriculture, water supply, climate regulation, and biodiversity.

Importance of Terrestrial Ecosystems

1. Food Production

Land supports agriculture and livestock farming.

2. Biodiversity Conservation

Forests and wildlife habitats preserve plant and animal species.

3. Climate Regulation

Forests absorb carbon dioxide and help reduce global warming.

4. Source of Raw Materials

Forests provide timber, medicine, and other resources.

5. Soil Protection

Vegetation prevents erosion and maintains soil fertility.

Environmental Problems Affecting Land Ecosystems

1. Deforestation

Cutting down trees for farming, fuel, and urbanization destroys habitats.

2. Desertification

Land becomes dry and unproductive due to climate change and poor land management.

3. Soil Erosion

Removal of vegetation exposes soil to wind and water erosion.

4. Loss of Biodiversity

Human activities cause extinction of plant and animal species.

5. Bush Burning

Uncontrolled fires damage vegetation and wildlife.

Targets of SDG 15

Target

Description

15.1

Conserve terrestrial and freshwater ecosystems

15.2

Promote sustainable forest management

15.3

Combat desertification and restore degraded land

15.5

Halt biodiversity loss

15.7

End poaching and trafficking of protected species

15.9

Integrate ecosystem values into development planning

Strategies for Achieving SDG 15

1. Afforestation and Reforestation

Planting trees helps restore degraded forests.

2. Wildlife Conservation

Protecting endangered species and habitats.

3. Sustainable Agriculture

Using farming methods that conserve soil and water.

4. Environmental Laws

Governments should enforce regulations against illegal logging and poaching.

5. Community Participation

Local communities should be involved in environmental conservation.

SDG 15 and Nigeria

Nigeria faces major environmental challenges including:

• Deforestation

• Desertification in northern regions

• Soil erosion in southeastern regions

• Wildlife loss

Government and non-governmental organizations have implemented:

• Tree planting programs

• National parks and forest reserves

• Anti-poaching campaigns

• Land restoration initiatives

Examples of conservation areas in Nigeria include:

• Yankari National Park

• Cross River National Park

Relationship Between SDGs 13, 14, and 15

These three SDGs are interconnected because climate change affects both marine and terrestrial ecosystems.

For example:

• Rising temperatures affect ocean life and coral reefs.

• Deforestation increases greenhouse gas emissions.

• Healthy forests and oceans help absorb carbon dioxide.

• Land pollution can eventually reach oceans and affect marine life.

Achieving environmental sustainability therefore requires integrated efforts across climate action, marine conservation, and land management.

Challenges to Achieving SDGs 13, 14, and 15

1. Poor environmental governance

2. Inadequate funding

3. Lack of public awareness

4. Weak enforcement of environmental laws

5. Poverty and population pressure

6. Industrial pollution

7. Unsustainable consumption patterns

Roles of Individuals in Environmental Sustainability

Students and citizens can contribute by:

• Planting trees

• Proper waste disposal

• Reducing plastic use

• Conserving energy

• Participating in environmental campaigns

• Protecting wildlife and natural habitats

• Supporting sustainable practices

Conclusion

SDGs 13, 14, and 15 are essential for protecting the planet and ensuring sustainable development. Climate change, marine pollution, deforestation, biodiversity loss, and land degradation threaten human survival and economic progress. Governments, organizations, communities, and individuals all have important roles to play in promoting environmental sustainability. For countries like Nigeria, addressing environmental challenges is necessary for improving agriculture, public health, economic growth, and quality of life. Achieving these goals will help create a healthier environment for present and future generations.