China, commodity worries rip back through markets

By Marc Jones LONDON (Reuters) - Renewed concerns about the stability of China and other big emerging economies and related worries about commodity prices swept through global markets on Monday ahead of what should be telling economic data this week. An 8.8 percent drop in Chinese industrial firms' profits and a 30 percent plunge miner Glencore's London-traded stocks triggered the latest round of jitters, sending copper , which had stabilized somewhat, back below $5,000 a tonne. Zambia, where Gl