Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Global growth of carbon dioxide still rising

30.03.2004


CSIRO has measured above average growth in carbon dioxide levels in the global atmosphere, despite global attempts to reduce these emissions. The source of the increase is most likely from the burning of fossil fuels - coal, oil and gas.



"The results are concerning because carbon dioxide is the main driver of climate change," says CSIRO Atmospheric Division chief research scientist Dr Paul Fraser. "I am a little bit surprised that the level is so high without input from forest wildfires."

Measurements at Cape Grim in Tasmania, Cape Ferguson in Queensland, sub-Antarctic Macquarie Island, Mawson in Antarctica, and the South Pole, show that carbon dioxide over the last two years has increased at near-record levels. The persistent increases measured over such a large region of the Southern Hemisphere ensure that they closely reflect the total global emissions.


These results support findings from the National Oceanic and Atmospheric Administration (NOAA) in the United States. NOAA announced this week that independent data from Mauna Loa in Hawaii showed peak seasonal carbon dioxide levels last year.

The last time growth rates of this magnitude were observed was in 1998 when a huge input of carbon dioxide, attributed by CSIRO to the 1997-98 Indonesian wildfires, caused global levels to jump alarmingly.

Carbon dioxide concentration in the atmosphere has been steadily increasing due to human activities since the Industrial Revolution. It is now higher than it has been for 420,000 years. The difference between 2002-2003 increases and the last large increase in 1998 is that information from other trace gases in the atmosphere (including isotopes, hydrogen, methane and carbon monoxide) show that the source of the increase is most likely from the burning of fossil fuels rather than emissions from oceans, which are the world’s biggest reservoir of carbon dioxide, or fires from burning forests.

Compared to the trend over the last 10 years, when carbon dioxide has increased in the atmosphere by 13.3 billion tonnes per year, both 2002 and 2003 have seen above average global growth rates at 18.7 and 17.1 billion tonnes. Only 1998 had a higher growth rate over the decade of 23 billion tonnes.

The Cape Grim program to monitor and study global atmospheric composition is a joint responsibility of the Bureau of Meteorology and CSIRO, while the CSIRO network is operated in cooperation with the Bureau of Meteorology, the Australian Antarctic Division, Australian Institute of Marine Science, NOAA and other international research agencies.

For more information contact:

Dr Paul Fraser, 03 9239 4613, Mobile: 0413 674 725
Dr Roger Francey, 03 9239 4615

Media assistance:
Simon Torok, 0409 844 302

Geraldine Capp | CSIRO
Further information:
http://www.csiro.au/index.asp?type=mediaRelease&id=PrCarbonDioxide2

More articles from Earth Sciences:

nachricht NASA examines newly formed Tropical Depression 3W in 3-D
26.04.2017 | NASA/Goddard Space Flight Center

nachricht Early organic carbon got deep burial in mantle
25.04.2017 | Rice University

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

Scientist invents way to trigger artificial photosynthesis to clean air

26.04.2017 | Materials Sciences

Ammonium nitrogen input increases the synthesis of anticarcinogenic compounds in broccoli

26.04.2017 | Agricultural and Forestry Science

SwRI-led team discovers lull in Mars' giant impact history

26.04.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>