sentence: Air pollutants absorb solar energy and reflect sunlight back into space.
sentences_after: The pollutants can also become the core for cloud droplets. Water droplets in clouds fuse around the pollutants. More pollutants create clouds with more number of smaller droplets. The smaller droplets make clouds to reflect more light. This causes more sunlight to be reflected back into space and less light reaches the Earth's surface.
concept_name: air pollutant
headings: Global dimming Causes and effects
categories: Climate change Environmental issues