Reuters: China is suffering its worst drought in a decade, which has left millions of people short of drinking water and has shrunk reservoirs and rivers, state media said on Friday. Hardest hit are large swathes of the usually humid south, where water levels on several major rivers have plunged to historic lows in recent months. "The drought is the most serious of the decade and is affecting almost the whole country," the China Daily quoted Zhang Jiatuan, an official from the …