Featured Research

from universities, journals, and other organizations

Carbon Dioxide Emissions Booming, Shifting East, Researchers Report

Date:
September 29, 2008
Source:
DOE/Oak Ridge National Laboratory
Summary:
Despite widespread concern about climate change, annual carbon dioxide emissions from burning fossil fuels and manufacturing cement have grown 38 percent since 1992, from 6.1 billion tons of carbon to 8.5 billion tons in 2007.

Despite widespread concern about climate change, annual carbon dioxide emissions from burning fossil fuels and manufacturing cement have grown 38 percent since 1992, from 6.1 billion tons of carbon to 8.5 billion tons in 2007.

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 rapidly developing Asian countries such as China and India. These are the findings of an analysis completed by the Department of Energy's Carbon Dioxide Information Analysis Center at Oak Ridge National Laboratory.

"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 that 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 year."

The latest estimates of annual emissions of carbon dioxide to the atmosphere indicate that emissions are continuing to grow rapidly and that the pattern of emissions has changed markedly since the drafting of the United Nations Framework Convention on Climate Change in 1992. It was then that the international community expressed concern about limiting emissions of greenhouse gases.

In the Kyoto Protocol, 38 developed countries initially agreed to limit their emissions of greenhouse gases in an effort to minimize their potential impact on the Earth's climate system. At the time of drafting the United Nations Convention, those 38 countries were responsible for 62 percent of carbon dioxide emissions attributable to all countries. By the time the Kyoto Protocol was drafted in 1997 that fraction was down to 57 percent.

The recent emissions estimates show that by the time the Kyoto Protocol came into force in 2005 those 38 countries were the source of less than half of the national total of emissions (an estimated 49.7 percent), and this value as of 2007 was 47 percent. More than half of global emissions are now from the so-called "developing countries." The Kyoto Protocol has been ratified by 181 countries, but not by the United States.

Marland emphasizes that these emissions numbers are subject to some uncertainty - about 5 percent for the United States but possibly as much as 20 percent for China.

"These are our best estimates, but precise numbers cannot be known with certainty," Marland said. "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."

While this national distribution of emissions is significant in the context of international agreements like the Kyoto Protocol, its practical significance is less clear in a world linked by international commerce, co-author Jay Gregg of the University of Maryland noted. A recent study has estimated, for example, that a third of CO2 emissions from China in 2005 were due to production of goods for export. Current estimates of national CO2 emissions show simply the amount of CO2 emitted from within a country and do not take into consideration the impact of international trade in goods and services or the energy used in international travel and transport.

The new estimates of CO2 emissions are based on energy data through 2005 from the United Nations, cement data through 2005 from the U.S. Geological Survey, energy data for 2006 and 2007 from BP, and extrapolations by Marland, Gregg and co-authors Tom Boden and Bob Andres of ORNL.

Burning fossil fuels and manufacturing cement - along with deforestation -- are the most important human-related sources of carbon dioxide emissions to the atmosphere, according to the researchers. The cement data take into account the breakdown of limestone to produce lime. Researchers also note that the new CO2 data include minor downward revisions of estimates for recent years, but the trends are not changed.


Story Source:

The above story is based on materials provided by DOE/Oak Ridge National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

DOE/Oak Ridge National Laboratory. "Carbon Dioxide Emissions Booming, Shifting East, Researchers Report." ScienceDaily. ScienceDaily, 29 September 2008. <www.sciencedaily.com/releases/2008/09/080924162938.htm>.
DOE/Oak Ridge National Laboratory. (2008, September 29). Carbon Dioxide Emissions Booming, Shifting East, Researchers Report. ScienceDaily. Retrieved September 14, 2014 from www.sciencedaily.com/releases/2008/09/080924162938.htm
DOE/Oak Ridge National Laboratory. "Carbon Dioxide Emissions Booming, Shifting East, Researchers Report." ScienceDaily. www.sciencedaily.com/releases/2008/09/080924162938.htm (accessed September 14, 2014).

Share This



More Earth & Climate News

Sunday, September 14, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Conservationists Face Uphill PR Battle With New Shark Rules

Conservationists Face Uphill PR Battle With New Shark Rules

Newsy (Sep. 14, 2014) — New conservation measures for shark fishing face an uphill PR battle in the fight to slow shark extinction. Video provided by Newsy
Powered by NewsLook.com
Pakistan's 'killer Mountain' Fails to Draw Tourists After Attack

Pakistan's 'killer Mountain' Fails to Draw Tourists After Attack

AFP (Sep. 12, 2014) — In June 2013, 10 foreign mountaineers and their guide were murdered on Nanga Parbat, an iconic peak that stands at 8,126m tall in northern Pakisan. Duration: 02:34 Video provided by AFP
Powered by NewsLook.com
Solar Storm To Hit This Weekend, Scientists Not Worried

Solar Storm To Hit This Weekend, Scientists Not Worried

Newsy (Sep. 11, 2014) — Two solar flares which erupted in our direction this week will arrive this weekend. The resulting solar storm will be powerful but not dangerous. Video provided by Newsy
Powered by NewsLook.com
The Ozone Layer Is Recovering, But It's Not All Good News

The Ozone Layer Is Recovering, But It's Not All Good News

Newsy (Sep. 11, 2014) — The Ozone layer is recovering thickness! Hooray! But in helping its recovery, we may have also helped put more greenhouse gases out there. Hooray? Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

    Technology News



    Save/Print:
    Share:  

    Free Subscriptions


    Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

    Get Social & Mobile


    Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

    Have Feedback?


    Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
    Mobile iPhone Android Web
    Follow Facebook Twitter Google+
    Subscribe RSS Feeds Email Newsletters
    Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins