Inter Press Service: When the World Meteorological Organisation (WMO) announced the grim news that 2009 is likely to rank in the top 10 warmest on record, the U.N. agency also stressed last week the widespread water-related calamities caused by global warming. China has suffered its worst drought in five decades. In East Africa, a drought has led to massive food shortages. In North America, Mexico experienced severe-to-exceptional drought conditions in September. And in central Argentina, a drought caused …