Multiple forms of pollution—air, water and plastic—incur considerable economic, health and environmental costs. Here is a summary of figures and sources in three parts
1. Current costs and global trends in multiple forms of pollution
a) Air pollution
- Global economic cost: In 2024, air pollution will cause an estimated annual cost of $8.1 trillion, or 6.1% of global GDP, due to its impact on health and productivity.
- Health impact: More than 8 million premature deaths are attributed to air pollution each year.
b) Water pollution
• Global economic cost: Water pollution could reduce global GDP by 8% by 2050 if no action is taken.
• Health impact: More than 2 billion people do not have access to safe drinking water, resulting in approximately 1,000 child deaths per day.
c) Soil pollution
• Global economic cost: Soil degradation affects around one third of the world’s land, threatening food security and ecosystems.
• Health impact: Soil pollution contributes to more than 500,000 premature deaths each year, mainly among vulnerable populations.
d) Plastic pollution
• Global economic cost: The social and environmental costs of plastic pollution are estimated at between $300 billion and $460 billion per year.
• Environmental impact: Marine plastic pollution causes economic losses of up to $2.5 trillion per year due to the degradation of ecosystem services.
e) Noise pollution
• Global economic cost: Noise pollution imposes significant economic costs, estimated at around £4.5 trillion per year, due to its impacts on health and productivity.
f) Light pollution
• Global economic cost: Light pollution costs the global economy approximately £3.4 trillion per year, or about 3% of global GDP, due to losses in ecosystem services and excessive energy consumption.
2. Possible solutions, associated costs and expected benefits
a) Air pollution
• Solutions: Transition to clean energy, improved energy efficiency, reduction of industrial emissions.
• Estimated costs: The necessary investments are significant, but the economic and health benefits far outweigh the costs.
• Expected benefits: Reduction in respiratory diseases, improved quality of life, increased productivity.
b) Water pollution
• Solutions: Improvement of wastewater treatment infrastructure, reduction in pesticide use, promotion of sustainable agriculture.
• Estimated costs: Every dollar invested in improving sanitation generates an average economic return of £5.5.
• Expected benefits: Improved public health, reduction in waterborne diseases, preservation of aquatic ecosystems.
c) Soil pollution
• Solutions: Rehabilitation of contaminated land, adoption of sustainable agricultural practices, prevention of soil artificialisation.
• Estimated costs: Costs vary by region, but investments in soil rehabilitation are essential for food security.
• Expected benefits: Improved agricultural productivity, reduced risks.
d) Plastic pollution
• Solutions: Reducing the production of single-use plastics, improving recycling, developing alternative materials.
• Estimated costs: Transition costs are offset by savings in waste management and avoided environmental impacts.
• Expected benefits: Reduction in marine pollution, preservation of wildlife, improvement in human health.
e) Noise pollution
• Solutions: Introduction of noise regulations, development of quiet transport infrastructure, adapted urban planning.
• Estimated costs: Investments in noise reduction are justified by gains in public health and quality of life.
• Expected benefits: Reduction in sleep disorders, decrease in cardiovascular disease, improvement in general well-being.
f) Light pollution
• Solutions: Use of efficient, directional lighting, reduction of unnecessary lighting, adoption of environmentally friendly lighting standards.
• Estimated costs: Installing high-quality lighting can reduce energy consumption by 60 to 70%, resulting in substantial savings.
• Expected benefits: Reduction in energy consumption, preservation of nocturnal biodiversity, improvement in human health.
3. Comparative summary: Inaction vs Action
| Type of pollution | Cost of inaction (USD/year) | Key solutions | Expected benefits |
| Air | 8,1 trillions | Clean energy, energy efficiency | Reduction in disease, improved quality of life |
| Water | 8% of global GDP by 2050 | Water treatment, sustainable agriculture | Improved public health, preservation of ecosystems |
| Soil | Impact on 1/3 of global land | Rehabilitation, sustainable agricultural practices | Food security, reduced health risks |
| Plastic | 300–460 billion | Plastic reduction, recycling | Preservation of wildlife, improved human health |
| Noise | 5 trillion | Regulations, quiet infrastructure | Improved well-being, reduced disease |
| Light pollution | 3.4 trillion | Efficient lighting, reduction of unnecessary lighting | Energy savings, preservation of biodiversity |
Multiple forms of pollution have major economic, health and environmental impacts on a global scale. However, solutions exist to mitigate them. Investing in these solutions is not only profitable, but also essential to ensuring a sustainable and healthy future for generations to come.
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