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 Climate change weakens Walker circulation
20.10.2017 | MARUM - Zentrum für Marine Umweltwissenschaften an der Universität Bremen

nachricht Shallow soils promote savannas in South America
20.10.2017 | Senckenberg Forschungsinstitut und Naturmuseen

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Terahertz spectroscopy goes nano

20.10.2017 | Information Technology

Strange but true: Turning a material upside down can sometimes make it softer

20.10.2017 | Materials Sciences

NRL clarifies valley polarization for electronic and optoelectronic technologies

20.10.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>