This report highlights the escalating health risks climate change poses to children and adolescents in Europe, a population especially vulnerable due to physiological and developmental factors. Rising temperatures and extreme weather events, such as heatwaves and flooding, are already leading to severe health consequences, including increased cases of heat exhaustion, respiratory illnesses, and mental health issues like anxiety and eco-anxiety. Additionally, the spread of vector-borne diseases is widening, placing children at risk for infections previously confined to warmer regions, while air pollution and allergens are exacerbating respiratory and allergy-related conditions. Nutritional risks are also rising, as climate-related disruptions impact food security and affordability, hindering children’s physical and cognitive development. Projections indicate that today’s youth will face four times more extreme events in their lifetime, underscoring the urgent need for child-focused health and support measures. This report provides essential insights for policymakers, healthcare providers, and educators addressing climate impacts on Europe’s young populations.