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By David Fogarty and David Stanway SINGAPORE/BEIJING (Reuters) - China's carbon emissions could be nearly 20 percent higher than previously thought, a new analysis of official Chinese data showed on Sunday, suggesting the pace of global climate change could be even faster than currently predicted. China has already overtaken the United States as the world's top greenhouse gas polluter, producing about a quarter of mankind's carbon pollution that scientists say is heating up the planet and triggering more extreme weather. But pinning down an accurate total for China's carbon emissions has long been a challenge because of doubts about the quality of its official energy use data.

In 2005, 85 percent of business owners were optimistic about the future. It's a tie between small business owners who think the economy and their small businesses will improve—and those who think both will tank, says a new report. The latest edition of American Express Open's semi-annual Small Business Monitor suggests small business optimism has not recovered from the hit it took in 2008.

If you're looking for an excuse for your poor work performance, tell your boss it's the office's fault. Here are the three worst environmental productivity killers--and how to cure them. If you're looking for an excuse for poor productivity, tell your boss it's the office's fault.