Study: World's CO2 emissions increase
Sep 29, 2008 - UPI
U.S. scientists say annual carbon dioxide emissions
from burning fossil fuels and manufacturing worldwide
have grown 38 percent since 1992.
The analysis by the Carbon Dioxide Information Analysis
Center at Oak Ridge National Laboratory in Tennessee
shows CO2 emissions increased from 6.1 billion tons
in 1992 to 8.5 billion tons last year.
"At the same time, the source of emissions has shifted
dramatically as energy use has been growing slowly
in many developed countries, but more quickly in some
developing countries, most notably in Asian countries
such as China and India," the researchers said.
"The United States was the largest emitter of CO2
in 1992, followed in order by China, Russia, Japan
and India," said Gregg Marland of ORNL's Environmental
Sciences Division. "The most recent estimates suggest
India passed Japan in 2002, China became the largest
emitter in 2006 and India is poised to pass Russia
to become the third-largest emitter, probably this
Marland said the numbers are researchers' best estimates,
but precise numbers cannot be known with certainty.
"Also, as countries with less certain data become
more important to the overall CO2 picture, the estimates
of the global total of emissions become less certain,"