Associated Press: Sea levels off Shanghai and other Chinese coastal cities are rising at an alarming rate, leading to contamination of drinking water supplies and other threats, China’s State Oceanic Administration reported Thursday. Waters off the industrial port city of Tianjin, 60 miles southeast of Beijing, rose by 7.72 inches over the past three decades, the administration said. Seas off the business hub of Shanghai have risen by 4.53 inches over the same period, the report …