As winter bites, Europe is facing a gas shortage. A cold snap has coincided with lower volumes of gas exports from Russia, forcing a big spike in prices. Consumers and businesses across the continent are facing a steep increase in their bills, with governments scrambling to cushion the impact. And analysts warn it could soon get worse. Moscow plans to build a new pipeline to China, which could give Russia the power to sell gas to the highest bidder, pitting Chinese and European consumers against one another. Chinese economy From the frozen expanses of Siberia, Russia already is sending some...