World’s cleanest air found

Researchers from the Colorado State University believe that they have found the world’s cleanest air, located over the Southern Ocean, CNN said. The researchers say that the area over the Southern Ocean surrounding Antarctica has not been adversely affected by human activities. The team found that aerosol particles generated from human activities like burning fossil fuels, planting certain crops and fertilizer production were totally absent in the area.

Update by: Santapan Saha