Climate change and population: Demographic perspectives on the 21st century's defining challenge

Area of Science:

• Demography
• Climate Science
• Environmental Studies

Background:

• Human populations are central to the climate crisis, both as drivers and affected parties.
• Anthropogenic activities, particularly fossil fuel combustion, are altering the climate system.
• Societies face escalating risks from climate change impacts on health, security, and well-being.

Purpose of the Study:

• To explore the multifaceted demographic dimensions of climate change.
• To provide a comprehensive overview of the population's role in driving climate change and its impacts.
• To examine the climate-population nexus in relation to health, mortality, migration, and fertility.

Main Methods:

• Interdisciplinary contributions from 51 authors.
• Analysis of research articles and debate articles by leading scholars.
• Application of demographic perspectives and methodological tools, including data analysis, modeling, and projections.

Main Results:

• Human activities are the primary drivers of observed climate change.
• Climate change significantly impacts population health, mortality, migration patterns, and reproductive behaviors.
• Demographic science offers critical tools for understanding and addressing the climate-population nexus.

Conclusions:

• A holistic research perspective is essential for integrating climate risks into demographic studies and vice versa.
• Effective mitigation and adaptation strategies require a thorough understanding of the intricate relationship between populations and climate change.
• Demographic insights are vital for developing equitable solutions to global and local climate challenges.