Navigation Links
Rise in temperatures and CO2 follow each other closely in climate change
Date:7/23/2012

The greatest climate change the world has seen in the last 100,000 years was the transition from the ice age to the warm interglacial period. New research from the Niels Bohr Institute at the University of Copenhagen indicates that, contrary to previous opinion, the rise in temperature and the rise in the atmospheric CO2 follow each other closely in terms of time. The results have been published in the scientific journal, Climate of the Past.

In the warmer climate the atmospheric content of CO2 is naturally higher. The gas CO2 (carbon dioxide) is a green-house gas that absorbs heat radiation from the Earth and thus keeps the Earth warm. In the shift between ice ages and interglacial periods the atmospheric content of CO2 helps to intensify the natural climate variations.

It had previously been thought that as the temperature began to rise at the end of the ice age approximately 19,000 years ago, an increase in the amount of CO2 in the atmosphere followed with a delay of up to 1,000 years.

"Our analyses of ice cores from the ice sheet in Antarctica shows that the concentration of CO2 in the atmosphere follows the rise in Antarctic temperatures very closely and is staggered by a few hundred years at most," explains Sune Olander Rasmussen, Associate Professor and centre coordinator at the Centre for Ice and Climate at the Niels Bohr Institute at the University of Copenhagen.

The research, which was carried out in collaboration with researchers from the University of Tasmania in Australia, is based on measurements of ice cores from five boreholes through the ice sheet in Antarctica. The ice sheet is formed by snow that doesn't melt, but remains year after year and is gradually compressed into kilometers thick ice. During the compression, air is trapped between the snowflakes and as a result the ice contains tiny samples of ancient atmospheres. The compositio
'/>"/>

Contact: Sune Olander Rasmussen
olander@gfy.ku.dk
(45) 45-88-12-89
University of Copenhagen
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Rising ocean temperatures harm protected coral reefs
2. Urgent research needed to determine most effective follow-up care for lung cancer patients
3. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
4. Hot meets cold at new deep-sea ecosystem: Hydrothermal seep
5. Killer silk: Making silk fibers that kill anthrax and other microbes in minutes
6. Polycrystalline diamond drill bits open up options for geothermal energy
7. Nanotherapy: Treating deadly brain tumors by delivering big radiation with tiny tools
8. Montreal researchers repel mortality in Malian mothers
9. Crestor Delivers Latest LDL-C Targets in High-Risk Patients at Lower Doses than Other Statins
10. Harmless human virus may be able to boost the effects of chemotherapy
11. Nanobubbles plus chemotherapy equals single-cell cancer targeting
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Issued by Small Cap IR. In 2011, Nilson Report,s annual ... merchants on the leading payment cards rose to $135.3 billion ... prepaid cards reached 6.54 billion.  Eight million credit card users ... 2012, and credit and debit card fraud resulted in $11.27 ...
(Date:1/22/2015)... has launched its new NXG series of time clocks with ... higher standard for collecting attendance and labor data and complements ... touch screen interface and seamless connection to cloud-based iSolved, the ... for the small to mid-size employer. The G2 ...
(Date:12/22/2014)... 22, 2014  The 2014 Holiday Season may be the ... Intelligence reports that the long anticipated floodgates for consumer ... demand for smart phones, tablets, and wearable mobile devices ... 2.5 billion users with nearly 4.8 billion biometric devices ...
Breaking Biology News(10 mins):$4.80 Near Term Price Target with "Buy" given by CapRock Research for NXT-ID, Inc. (NASDAQ: NXTD) issued by Small Cap IR 2Infinisource's NXG series sets new time clock standard 2First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2
... discovered how a network of repair proteins enables bacteria to ... the DNA molecules that carry the instructions necessary for living ... at the University of Bristol and published in Molecular ... between the DNA repair systems of bacteria and humans than ...
... 38 million people worldwide are currently infected with HIV ... For scientists to design treatment therapies that are effective ... about how the virus mutates and develops resistance to ... biomedical engineer Stephanie Willerth has significantly advanced the understanding ...
... Researchers presented Phase III efficacy data from the GeparQuinto ... in combination with chemotherapy for patients with early breast ... Cancer Symposium, held Dec. 8-12. "We had ... combination of chemotherapy, trastuzumab, with the new combination of ...
Cached Biology News:New research reveals details of microbe's extraordinary maintenance and repair system 2UVic biomedical engineer 'outsmarts' HIV 2Phase III study compared neoadjuvant therapy with lapatinib or trastuzumab for early breast cancer 2
(Date:1/22/2015)... GEA Niro Soavi the leader in high ... PandaPLUS 2000, which is ideal for new applications for ... disruption . This compact laboratory homogenizer is the perfect ... food additives and ingredients as well as for the ...
(Date:1/22/2015)... Protocol Networks brings independent technology consulting to the ... consultants, Protocol Networks has recently announced its expansion into ... his company has attracted several clients in The Constitution ... as others. With the success of these engagements, Rogers ...
(Date:1/22/2015)... Dr. Greg Leyer of UAS Labs recently was invited to ... on probiotics in San Diego, CA. , The Scripps ... health care professionals. This year’s pre-conference seminar was held on ... Dr. Leyer spoke about the emerging topics and science in ...
(Date:1/22/2015)... Nueva Jersey , 22 de enero de 2015 ... Research abre hoy su llamada a nominaciones para 2015. ... científica ha hecho, o tiene el potencial para hacer, ... Las nominaciones se aceptarán hasta el 15 de marzo ...
Breaking Biology Technology:GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2Protocol Networks Brings Independent Technology Consulting to the Constitution State 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4
... information security firm Symantec released the 11th edition ... Symantec's attempt to get out of the day-to-day and see ... ominous, according to Dave Cole, a director in the Symantec ... game today is data theft, and the creation of malicious ...
... the growing dependence on transportation infrastructure between Illinois ... connect new and existing developments was highlighted. Building ... having a great supporting infrastructure, but I was ... reader Larry Zielonka, a CPA, commented that the ...
... reported net income of $113.5 million during the first ... revenues rising 11 percent over the same quarter in 2006. ... services industry, said net income was down from the $116.2 ... per share were slightly higher than the $0.64 in the ...
Cached Biology Technology:Symantec: Cyber fraudsters look for low-hanging fruit 2Symantec: Cyber fraudsters look for low-hanging fruit 3Symantec: Cyber fraudsters look for low-hanging fruit 4Symantec: Cyber fraudsters look for low-hanging fruit 5Symantec: Cyber fraudsters look for low-hanging fruit 6Symantec: Cyber fraudsters look for low-hanging fruit 7Mega-Metro Center may go beyond Chicago and Wisconsin 2Mega-Metro Center may go beyond Chicago and Wisconsin 3Mega-Metro Center may go beyond Chicago and Wisconsin 4Mega-Metro Center may go beyond Chicago and Wisconsin 5