Sydney Morning Herald: THE thick blanket of red dust that settled on Sydney two weeks ago caused the harbour to bloom. Nutrient-rich topsoil from the city’s worst dust storm in about 70 years led to a tripling in the number of microscopic plants, or phytoplankton, in the upper layers of water, Sydney scientists have found. They also calculate this invisible explosion in photosynthetic life in the harbour and Tasman Sea would have soaked up an amount of carbon dioxide equivalent to a month’s emissions …