• How effective is rain in cleaning the atmosphere

    ByArif Nehal

    Atmospheric chemists at MIT claims to have obtained the most accurate estimates of rates of coagulation between rain droplets and aerosol particles that in turn could be used to determine the extent to which natural rain may contribute to keeping the atmosphere

  • Heavy Rain in Namibia and South Africa

    ByEye

    In early May 2011, more rain fell in one day in parts of Namibia and South Africa than typically falls in an entire year. For several months, unusually heavy and persistent rains have soaked western Africa and filled rivers and basins that have been quiescent for