Navigation Links
Envisat makes first ever observation of regionally elevated CO2 from manmade emissions
Date:3/18/2008

Using data from the SCIAMACHY instrument aboard ESA's Envisat environmental satellite, scientists have for the first time detected regionally elevated atmospheric carbon dioxide the most important greenhouse gas that contributes to global warming originating from manmade emissions.

More than 30 billion tonnes of extra carbon dioxide (CO2) is released into the atmosphere annually by human activities, mainly through the burning of fossil fuels. According to the latest report by the Intergovernmental Panel on Climate Change (IPCC), this increase is predicted to result in a warmer climate with rising sea levels and an increase of extreme weather conditions. Predicting future atmospheric CO2 levels requires an increase in our understanding of carbon fluxes.

Dr Michael Buchwitz from the Institute of Environmental Physics (IUP) at the University of Bremen in Germany and his colleagues detected the relatively weak atmospheric CO2 signal arising from regional anthropogenic, or manmade, CO2 emissions over Europe by processing and analysing SCIAMACHY data from 2003 to 2005.

As illustrated in the image, the findings show an extended plume over Europes most populated area, the region from Amsterdam in the Netherlands to Frankfurt, Germany.

Carbon dioxide emissions occur naturally as well as being created through human activities, like the burning of fossil fuels (oil, coal, gas) for power generation, industry and traffic.

"The natural CO2 fluxes between the atmosphere and the Earths surface are typically much larger than the CO2 fluxes arising from manmade CO2 emissions, making the detection of regional anthropogenic CO2 emission signals quite difficult," Buchwitz explained.

"This does not mean, however, that the anthropogenic fluxes are of minor importance. In fact, the opposite is true because the manmade fluxes are only going in one direction whereas the natural fluxes operate in both directions, taking up atmospheric CO2 when plants grow, but releasing most or all of it again later when the plants decay. This results in higher atmospheric CO2 concentrations in the first half of a year followed by lower CO2 during the second half of a year with a minimum around August.

"That we are able to detect regionally elevated CO2 over Europe shows the high quality of the SCIAMACHY CO2 measurements."

Buchwitz says further analysis is required in order to draw quantitative conclusions in terms of CO2 emissions. "We verified that the CO2 spatial pattern that we measure correlates well with current CO2 emission databases and population density but more studies are needed before definitive quantitative conclusions concerning CO2 emissions can be drawn."

Significant gaps remain in the knowledge of carbon dioxides sources, such as fires, volcanic activity and the respiration of living organisms, and its natural sinks, such as the land and ocean.

"We know that about half of the CO2 emitted by mankind each year is taken up by natural sinks on land and in the oceans. We do not know, however, where exactly these important sinks are and to what extent they take up the CO2 we are emitting, i.e., how strong they are.

"We also dont know how these sinks will respond to a changing climate. It is even possible that some of these sinks will saturate or turn into a CO2 source in the future. With our satellite measurements we hope to be able to provide answers to questions like this in order to make reliable predictions," Buchwitz said.

By better understanding all of the parameters involved in the carbon cycle, scientists can better predict climate change as well as better monitor international treaties aimed at reducing greenhouse gas emissions, such as the Kyoto Protocol which addresses the reduction of six greenhouse gases.

Last year, European Union leaders highlighted the importance of cutting emissions from these manmade gases by endorsing binding targets to cut greenhouse gases by at least 20 percent from 1990 levels by 2020.


'/>"/>

Contact: Mariangela D'Acunto
mariangela.dacunto@esa.int
39-069-418-0856
European Space Agency
Source:Eurekalert  

Related medicine news :

1. New Smart Technology Makes Patient Data Collection Easier, More Efficient
2. WeissComm Partners Makes 10 New Hires as It Wins New Accounts and Grows Existing Business
3. Independence Blue Cross Makes Music for Members Ears
4. A Place for Mom COO Makes Seattles 40 Under 40 List
5. Sesame Street Exhibition Makes Texas Premier at The Health Museum
6. Study makes progress in zoning in on biomarkers for better colon cancer treatment
7. New Online Tool Makes Enrollment in Blue Cross of California Easier
8. 1-800-PACK-RAT Makes a Splash During Annual Walk for Hope
9. Eye on Safety Makes Halloween Less Scary
10. An Industry First: New Cooper Health Company Makes Group Employee Benefits Consulting and Wellness Program Design a Package Deal
11. Michigan State Medical Society Foundation Makes A Difference by Assisting Those in Crisis Shelters
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Envisat makes first ever observation of regionally elevated CO2 from manmade emissions
(Date:5/26/2016)... ... May 26, 2016 , ... ... a multitude of activities from daily practices, arts & crafts, discussions, and games ... Amber East-D’Anna and Christy Evans have combined backgrounds in kids’ yoga, collegiate sport ...
(Date:5/26/2016)... (PRWEB) , ... May 26, 2016 , ... ... education and products recently hosted the first PowerWave Instructor Certification Course in Stoughton, ... lead a group of fitness professional through the 8 hour interactive course to ...
(Date:5/26/2016)... (PRWEB) , ... May 26, 2016 , ... A health ... startup, The Dough Bar, has ignited an undeniable buzz in the protein ... doughnut. But not just any doughnut.  These doughnuts are packed with 11 grams of ...
(Date:5/26/2016)... ... 26, 2016 , ... Saint Francis Hospital & Medical Center ... efforts have paid off. Since implementation of these efforts, surgical errors and ... perioperative patient experiences and reduce costly complications. Since implementation in 2011, safety efforts ...
(Date:5/26/2016)... ... May 26, 2016 , ... ... nominations to serve on its Accreditation and Standards Committees and support the ... activities incorporate key process and outcome measures, with the ultimate mission of ...
Breaking Medicine News(10 mins):
(Date:5/26/2016)... TARE (Transarterial Radio-embolization) Using ... and Overall Decreased Use of Hospital Resource ... specialist healthcare company, has today announced the publication ... of ISPOR (International Society for Pharmacoeconomics and Outcomes ... using yttrium-90 glass microspheres is associated with cost ...
(Date:5/25/2016)... GERMANTOWN, Maryland , May 25, 2016 /PRNewswire/ ... dringenden Bedarf zur Steuerung ... N.V. (NASDAQ: QGEN ; Frankfurt Prime ... Entwicklungsvereinbarung mit Therawis Diagnostics GmbH zur Entwicklung und ... sein. Ein erstes Projekt wird die Entwicklung und ...
(Date:5/25/2016)... As illustrated by the Spring ... the numbers and momentum of cannabis in the US ... billions, more research and development push the sector forward. ... Legal Marijuana Markets Report  from from ArcView Market Research ... the increase in sector is attributed to adult use ...
Breaking Medicine Technology: