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 A new dead zone in the Indian Ocean could impact future marine nutrient balance
06.12.2016 | Max-Planck-Institut für marine Mikrobiologie

nachricht NASA's AIM observes early noctilucent ice clouds over Antarctica
05.12.2016 | NASA/Goddard Space Flight Center

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Simple processing technique could cut cost of organic PV and wearable electronics

06.12.2016 | Materials Sciences

3-D printed kidney phantoms aid nuclear medicine dosing calibration

06.12.2016 | Medical Engineering

Robot on demand: Mobile machining of aircraft components with high precision

06.12.2016 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>