NAIROBI, KENYA / RankWire.AI / – A new global assessment indicates that coordinated efforts to tackle climate change and air pollution can generate approximately $15 in economic advantages for every $1 invested. This report was published on September 7 by the UN Environment Programme and Climate and Clean Air Coalition. It analyzes 25 different measures targeting major sources of emissions and pollutants. The report highlights that this is the first comprehensive global economic evaluation of integrated climate and clean air strategies.
The study projects that these measures could provide annual economic benefits equivalent to 2.8% of global GDP by 2035. By 2050, this figure would increase to 4.5%, and by 2100, it could reach 11.4% with full implementation. Without considering non-market welfare gains, the measures are estimated to return roughly $4 for every $1 invested. Furthermore, the report warns that delays of just one year could result in the loss of over $1.5 trillion in combined yearly benefits.
The 25 proposed measures encompass sectors such as energy, fossil fuel systems, industry, transport, agriculture, residential energy, and waste management. These include expanding renewable energy, improving energy efficiency, promoting cleaner cooking and heating solutions, advancing electric vehicle adoption, and tightening vehicle emissions standards. Additional strategies target oil and gas leaks, routine venting and flaring, fertilizer application, livestock management, rice cultivation, and crop residue burning. The package also emphasizes enhanced waste management practices and reductions in hydrofluorocarbons and other climate-affecting pollutants.
Economic impacts extend across key industries
Addressing air pollution remains a crucial element in economic assessments because of its direct influence on health and productivity. The assessment links outdoor air pollution caused by human activity to approximately 6.4 million premature deaths globally in 2025. In addition, household air pollution contributed to an estimated 2 million early deaths, including about 300,000 children. Outdoor pollution also played a role in 5.5 million new childhood asthma cases and 2 million new dementia cases during the same year.
Achieving full implementation of these measures could prevent a total of 144 million premature deaths related to air pollution by 2050. Of these, 96 million deaths are associated with ambient air pollution. The assessment further anticipates hundreds of millions fewer cases of chronic diseases. Compared to the baseline scenario, immediate action could cut global carbon dioxide emissions by half by 2050, reduce methane emissions by 60%, and lower several major air pollutants by roughly 70%.
Climate mitigation and health improvements are interconnected
The proposed package aims to limit global temperature rise to about 0.34 degrees Celsius by 2050 and 1.4 degrees by 2100. By the end of the century, the scenario projects reductions in key air pollutants by as much as 85%. Implementation costs are estimated at about 0.7% of global GDP over the next decade, decreasing to around 0.5% by the end of the century. The assessment further suggests that stronger enabling conditions could accelerate full implementation by as much as ten years.
UN Environment Programme and Climate and Clean Air Coalition issued these findings on the occasion of the International Day of Clean Air for blue skies. The report highlights institutional barriers as significant obstacles to broader adoption of existing measures. It estimates that addressing these conditions could lead to up to $10 trillion in savings by 2040. The findings establish a link between climate policies, air quality, health costs, and productivity, framing these measures within one economic model applicable across several major sectors.