Worldwide carbon dioxide emissions are growing at a much faster rate than scientists had projected, according to a report in the Proceedings of the National Academy of Sciences. One reason for the underestimation: energy use has grown more quickly than many countries' economies. That's not good news for the fight against global warming. Some findings from the report:
8 billion In 2005 nearly 8 billion tons of carbon were pumped into the atmosphere, compared with 6.4 billion tons in 1995.
1.1% CO2 emissions from automobiles, power plants and factories grew at an annual rate of 1.1% during the 1990s.