The amount of global warming gases sent into the atmosphere made an unprecedented jump in 2010, according to the US Department of Energy's latest world data on carbon dioxide emissions.
"It's big," said Tom Boden, director of the Carbon Dioxide Information Analysis Center Environmental Sciences Division at the DOE's Oak Ridge National Laboratory in Tennessee.
"Our data go back to 1751, even before the Industrial Revolution. Never before have we seen a 500-million-metric-ton carbon increase in a single year," he told AFP.
The 512 million metric ton increase amounted to a near six percent rise between 2009 and 2010, going from 8.6 billion metric tons to 9.1 billion.
Large jumps, measured from C02 emissions released into the atmosphere as a result of burning coal and gas, were visible in China, the United States and India, the world's top three polluters.
Significant spikes over 2009 were also seen in Saudi Arabia, Turkey, Russia, Poland and Kazakhstan.
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