Meteorologists were left speechless Tuesday as record amounts of snow fell along the Gulf Coast. Here’s why it was so snowy.

Southeast Asian cities were among five most polluted in the world on Friday according to air-monitoring organisation IQAir, ...

Southeast Asian Cities Among World's Most Polluted ... committed to solving the dust problem," she said. In Vietnam's largest city, IQAir said the level of fine inhalable particles in Ho Chi ...