Sydney Morning Herald: Freak snowstorms and record low temperatures sweeping northern China are linked to global warming, say Chinese officials. But, unlike the unseasonal snow falls that hit Beijing at the start of winter, the dump this week appears to have no link to the Government’s relentless efforts to change the micro climate. There are about 2000 weather modification offices in China, according to the media, which are responsible for bombing the skies with silver iodide to induce …