Psychology & Adapting to Environmental Health Threats

Environmental Health

The branch of public health focused on understanding and controlling how human actions impact the environment and how environmental factors in turn affect human health.

Five core components of environmental health

Clean air, stable climate, safe water, hygiene and sanitation, and healthy workplaces.

Environmental Psychology

The discipline that examines the bidirectional relationship between people and the physical environments they inhabit.

WHO Climate-Health Framework risk pathways

Extreme weather, heat stress, poor air quality, water insecurity, and food insecurity.

Direct health impacts of climate change

Immediate physical traumas and conditions such as storm/flood injuries, heatstroke during heatwaves, respiratory illness from smoke or pollution, and acute PTSD.

Indirect health impacts of climate change

Secondary health consequences resulting from systemic disruption, including water scarcity, food supply failures, population displacement, and prolonged eco-anxiety.

Doherty & Clayton (2011) Psychological Impacts Framework

A model classifying climate mental health effects into direct/acute events (trauma, extreme weather), indirect consequences (anxiety, grief, despair), and psychosocial/community impacts (displacement, conflict).

Heat illness progression continuum

Heat cramps $\rightarrow$ Heat exhaustion $\rightarrow$ Heatstroke $\rightarrow$ Hyperthermia $\rightarrow$ Death.

Ecological Grief

The emotional response of mourning and sorrow experienced after experiencing ecological losses, such as degraded landscapes, altered ecosystems, or species extinction.

Solastalgia

A form of distress produced by environmental change impacting people while they are directly connected to their home environment, where their familiar surroundings no longer provide solace.

Eco-Anxiety

A chronic or generalized apprehension that the ecological systems underpinning life on Earth are facing severe destabilization or breakdown.

Climate Anxiety

Apprehension, worry, and fear explicitly directed toward human-induced climate change and its anticipated global outcomes.

Adaptive vs. maladaptive responses to eco-anxiety

Adaptive responses channel emotional tension into constructive learning, lifestyle shifts, and climate advocacy; maladaptive responses manifest as debilitating worry, insomnia, and generalized anxiety disorders.

Climate Change Mitigation

Interventions targeted at decreasing the rate or magnitude of climate change itself, primarily through emission reductions, renewable energy, and carbon removal technologies.

Climate Change Adaptation

Modifications in human behavior, policies, and built structures to moderate harm or exploit beneficial opportunities arising from current and unavoidable climate impacts.

The 'Big 4' individual mitigation actions

Living car-free, avoiding air travel, consuming a plant-based diet, and powering homes with renewable energy.

Urban Heat Island effect

The elevation of temperatures in metropolitan centers relative to outlying rural districts, driven by concentrated asphalt, concrete, and scarce vegetation canopy.

Preparative vs. protective heat adaptation

Preparative adaptation involves structural upgrades like planting trees and expanding green spaces for evaporative cooling; protective adaptation involves immediate behaviors such as seeking shade, staying indoors, and maintaining hydration.

Cognitive adaptation strategies for climate distress

Reframing internal narratives, curbing harsh self-evaluation, setting aside time for mental decompression, and consciously nurturing realistic hope.

Relational adaptation strategies for climate distress

Fostering interpersonal connection by sharing climate fears with peers, consulting mentors, and participating in action-oriented community support networks.