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Scientists Studying Tiny Cloud-Forming Particles in Nunavut Air

In order to see your breath in winter, there have to be tiny particles floating in the air so the moisture in your breath will have something to cling to and form molecules visible to the human eye. Those tiny airborne particles, known as aerosols, come from naturally existing things such as plant pollen, dust and sea spray, and also from human made pollution such as black carbon. Scientists are not just looking for air pollution that can create health problems, however.  They are also seeking to determine how the particles affect cloud formation and may lead to climate changes.  Nunatsiaq Online

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