How Trees Clean the Air We Breathe: What Science Shows Air pollution is a major public-health concern, contributing to asthma, heart disease, lung cancer, and premature death worldwide. While technology plays a role in reducing emissions, one of the most effective and natural solutions grows outside our windows: trees . Decades of research confirm that trees significantly improve air quality by removing pollutants, cooling the atmosphere, and reducing the formation of harmful

Protecting Children from Air Pollution Air pollution is one of the most serious environmental health threats facing children today. Traffic emissions, industrial pollutants, wildfire smoke, and airborne microplastics affect developing lungs and can lead to lifelong health problems. While schools cannot control every pollution source in their area, one powerful and low-cost solution is available right on campus: trees . Research shows that increasing tree canopy around schools

In Washington State, the importance of trees extends far beyond beauty and shade. Urban and community forests serve as a critical public health resource—removing harmful air pollutants, cooling neighborhoods, and protecting residents from respiratory illness. As wildfire smoke, traffic emissions, and climate-driven heat increase across the state, expanding tree canopy is one of Washington’s most effective strategies for protecting public health. 🌿 Trees Clean Washington’s Ai