Clouds in the past vs in the present. Were they cloudy in the past or are they now? We see cloudier skies these days due to human aerosol pollution - as clouds tend to condense around small particles called aerosols in the form of sulfuric acid.
by Rida
by Kareen Liez Datoy
by DonDon Navidad
by Gelli Chua
by Joseph Peter Capaque
by Staff Reporter