Atmospheric aerosol particles are essential for the formation of clouds and precipitation, thereby influencing the Earth’s energy budget, water cycle and climate. However, the origin of aerosol ...

Clouds need two essential ingredients to form, and both must be present simultaneously for the process to begin. There are two ingredients needed for clouds to form: water and nuclei. The first ...

Black acid rain formed after oil depot fires in Tehran may expose millions to acidic aerosols, soot, and toxic pollutants ...

Water moves between pools through evaporation into water vapor, transport through the atmosphere, condensation to form clouds, and returns to the surface as precipitation. At its core, the water cycle ...

There are four main precipitation types, and the Philadelphia area can and does receive all types, sometimes all within a single storm. The four types of precipitation are rain, snow, sleet and ...