The Economist: Seasons of discontent - El Nino

I recall back in the 1970s told by an archaeologist and writer of prehispanic Peru, Ed Lanning, that due to the vagaries of the Humboldt current, the waters off shore smelled like a baby's diaper, and that's how "El Nino" came to be, no fish or smell from dead fish. Another interesting phenomenon discussed by British geographers is the growing disparities of wealth between the Northern and Southern hemispheres, where conflict is liable to occur, perhaps like the sides in the "North and South" in the American civil war. One side providing the raw materials the other with decreasing "return" to the suppliers. Climate science