<正>MARCH in Beijing is a time of hope, and despair. The Siberian winds that howl in from Mongolia begin to wane; renegade centigrades make a break for positive. Beijing may get warmer in the third month of the year, but the weather can still be abysmal. Expect encounters with the wild children of meteorology - sleet, hail, sandstorms - before spring truly arrives. For many residents, married to the city for the pre-Chinese New Year winter work slog, March is breaking point.