Particulate pollution harms people and climate

Reaserchers at Carnegie Mellon University report important findings:

• Soot and gaseous pollutants from cars and trucks undergo chemical changes in the atmosphere - new particulate matter is created that may be more harmful to people...
• These new particulates may also influence cloud formation that can alter the global climate...
• Particulate pollution spreads over large geographic areas, not confined to the urban areas where emissions are concentrated...

Particulate matter affects clouds and sunlight, both of which play key roles in climate change: Carnegie Mellon Researchers Urge Regulators To Rethink Strategies For Soot Emission