Today is #CleanAirDay. But findings of the 🆕 WMO Air Quality & Climate Bulletin show that an increase in pollution from wildfires and heatwaves could slow efforts to improve air quality and protect human and ecosystem health. The bulletin highlights the complex interlinkages between air quality and climate. It shows the negative impacts to human health and the environment of air pollutants such as fine particulate matter, and ground-level ozone, aerosol like black carbon and microplastics. Explore the WMO scientific community’s findings on: 🔍 Global particulate matter concentrations in 2025 ☁️ Aerosol–cloud interactions 🔥 Wildfire emissions and global health 🔬 Microplastics 🌡️ Heatwaves and ground-level ozone pollution Link in bio to learn more and download the full edition.