As the scorching summer unfolds, climate-related environmental disasters continue to dominate headlines.
Heat waves are mercilessly sweeping across regions such as the United States, Europe, China, and North Africa (SN: 7/19/23), while devastating wildfires rage in Canada and Greece.
The dire consequences of these events ripple through every segment of society, with a particularly alarming toll on our most vulnerable: children. The United Nations Children’s Fund (UNICEF) has rightfully labeled climate change as a child rights crisis.
Shockingly, an estimated 1 billion children globally—nearly half of the world’s young population—are at an exceptionally high risk due to the repercussions of climate change. This not only endangers their well-being today but casts a shadow over their future health and prosperity.
Frederica Perera, an esteemed environmental health scientist at Columbia University who founded the Columbia Center for Children’s Environmental Health, has been deeply immersed in understanding the intersection of climate change and children’s health. In an exclusive conversation with Science News, Perera elucidates the intricate connections between climate change, children’s well-being, the disparities amplifying the risks, and the long-term ramifications of early harm. Here, we distill the essence of this insightful dialogue.
**Effects of Climate Change on Children’s Health**
The profound impact of climate change on children’s health extends from the fetal period through adolescence. As Perera emphasizes, “There’s a multitude of health risks.” Intense heat contributes to preterm births, and the ensuing heat-related illnesses can take a toll on both infants and children. These young individuals are also subject to the physical injuries and psychological trauma inflicted by extreme weather events. The lengthened pollen seasons resulting from climate change contribute to an uptick in allergies and asthma cases, with forest fire smoke exacerbating asthma attacks. Moreover, the scourge of food insecurity and stunted growth looms large due to droughts in certain regions. The surge in infectious diseases borne by insects, such as ticks and mosquitoes, is yet another unsettling consequence.
Children’s Vulnerability and Unique Risks
Children’s susceptibility to climate-related health risks is deeply rooted in their rapid developmental progression from infancy to adolescence. During these crucial stages, their systems are intricately evolving and are thus particularly susceptible to disruption caused by toxic pollutants and climate-induced stressors. Furthermore, children lack the fully functional biological defense mechanisms present in adults, rendering them less capable of fending off toxic exposures.
Heatwaves and air pollution pose specific threats. Children possess a reduced ability to regulate core body temperature during severe heatwaves. As Perera points out, “The young are dependent on us adults for hydration and for care when there are early indications of heat-related illness.” In terms of air quality, children’s increased exposure to pollutants is compounded by their heightened outdoor activity. Their respiratory systems, characterized by a larger lung surface area, result in greater inhalation per kilogram of body weight. This makes them more susceptible to the harmful effects of particles suspended in the air.
Implications for Mental Health
Climate change exerts both direct and indirect effects on children’s mental health. Those who directly experience severe weather events often exhibit heightened rates of depression symptoms and post-traumatic stress disorder. Even children who haven’t endured such disasters are not immune to the impacts. As revealed by surveys spanning ten countries, over 50 percent of teens and young individuals express profound concern about climate change, with this anxiety negatively impacting their daily lives.
Disparities Amplifying the Risks
The harrowing truth is that while all children are vulnerable, specific groups are disproportionately impacted. This disparity extends globally, affecting low-income countries more severely than their high-income counterparts. Even within the United States, communities of color and low-income communities face elevated exposure to air pollution, severe heat, and extreme weather events. Discriminatory practices such as redlining have compounded these vulnerabilities. The outcome is a stark contrast in disease rates. In the U.S., Black children experience double the asthma prevalence and infant mortality rates compared to their white counterparts.
Long-Term Implications
The consequences of early health harms triggered by climate change and air pollution reverberate throughout life. The persistence of respiratory conditions is a notable outcome, with severe or persistent asthma increasing the risk of permanent airway obstruction and chronic obstructive pulmonary disease. Reduced cognitive functioning resulting from air pollution and early-life malnutrition can impede learning, hindering future opportunities for economic growth and contribution to society. Stress and trauma experienced at a young age reverberate into adulthood, affecting mental health.
A Call to Prioritize Our Children’s Well-being
The urgency to address climate change is now intertwined with safeguarding our children’s health and future. As we contemplate the long-term implications of these early health challenges, the imperative to implement policies and interventions that curtail fossil fuel emissions becomes undeniable. The health and economic benefits that arise from these efforts will extend not only to the current generation but also to the generations to come. As we navigate the intricate landscape of climate change and its impact on our youngest, the need for collective action becomes clearer than ever before.
