Pollen Allergens and Climate Change Dynamics
Summary
Pollen allergens represent a major and growing public health challenge, driven in part by shifts in climate that affect plant phenology, pollen production and allergenic potency. Warming temperatures and elevated carbon dioxide levels extend pollen seasons and boost biomass, while urban pollutants such as nitrogen deposition and ozone can amplify the allergen content and immunogenicity of pollen grains. These combined environmental pressures lead to higher airborne pollen concentrations, longer exposure periods and more severe allergic responses in sensitised individuals. Modelling and monitoring studies now quantify how anthropogenic forcing contributes to these trends, informing early warning systems, urban planting guidelines and mitigation strategies aimed at reducing the burden of allergic rhinitis and asthma on a global scale.
Research from Nature Portfolio
No recent Nature Portfolio content available.
Pollen Allergens and Climate Change Dynamics publication trend
The graph below shows the total number of articles in pollen allergens and climate change dynamics across all publications each year (not limited to Nature Index journals).
Technical terms
Allergenicity: The capacity of a substance, such as pollen, to provoke an immune response, often measured by specific IgE titres or cellular activation assays.
Basophil activation test: An in vitro assay that quantifies the activation of basophils (a type of white blood cell) upon exposure to allergens, indicating allergenic potency.
Phenology: The study of seasonal biological events, such as flowering and pollen release, and their relationship to environmental factors.
Anthropogenic forcing: Human-caused influences on the climate system, including greenhouse gas emissions and land-use change, which alter temperature and atmospheric composition.
References
- The impact of ecosystem nitrogen enrichment on pollen allergy: a cross-sectional paired comparison study. The Lancet Planetary Health (2025).
- Monitoring and perception of allergenic pollen in urban park environments. Landscape and Urban Planning (2024).
- Anthropogenic climate change is worsening North American pollen seasons. Proceedings of the National Academy of Sciences of the United States of America (2021).
About these summaries
This Nature Research Intelligence Topic summary is created with the cited references and a large language model. We take care to ground generated text with facts, and have systems in place to gain human feedback on the overall quality of the process in line with our AI principles. We strive to create accurate and useful summaries for people unfamiliar with the research topic and that supports this goal. These pages are a beta release and will be updated as we learn how best to help people gain value from a research topic summary.
Turn complex research questions into confident strategic decisions
When you're under pressure to set direction, justify investment, or understand your competitive position, you need more than raw data — you need trusted insights you can act on.
Benchmark your performance against global peers using robust, methodologically sound analysis.
Combine quantitative metrics with qualitative expert insight to uncover strengths, gaps and emerging opportunities.
Gain tailored, decision-ready recommendations aligned to your strategic priorities.
Talk to us to learn more about our data dashboards and bespoke strategy reports.
Grow research skills, confidence and careers with training built for every stage of the research lifecycle.
Developed with Nature Portfolio journal Editors and internationally renowned experts. Discover three ways to learn:
Self-paced, online courses in convenient bite-sized units, covering key skills across scientific writing, publishing, grant writing, data analysis, and more.
Expert trainer-led workshops with hands-on exercises and real-time feedback across core research skills, delivered via interactive group sessions.
Editor-led workshops combining core principles in writing and publishing, personalised 1:1 feedback from Nature Portfolio Editors and hands-on exercises.
Explore course catalogues and workshop agendas, enquire about the options or request institutional pricing.