Navigation Links
Global warming's biggest offenders
Date:1/15/2014

This news release is available in French.

Montreal, January 15, 2014 When it comes to global warming, there are seven big contributors: the United States, China, Russia, Brazil, India, Germany and the United Kingdom. A new study published in Environmental Research Letters reveals that these countries were collectively responsible for more than 60 per cent of pre-2005 global warming. Uniquely, it also assigns a temperature change value to each country that reflects its contribution to observed global warming.

The study was conducted at Concordia under the leadership of Damon Matthews, an associate professor in the Department of Geography, Planning and Environment. In a straight ranking, the U.S. is an unambiguous leader, responsible for a global temperature increase of 0.15 C. That's close to 20 per cent of the observed warming.

China and Russia account for around eight per cent each; Brazil and India seven per cent; and Germany and the U.K. around five per cent each. Canada comes in in 10th place, just after France and Indonesia. Although it may seem surprising that less industrialized countries, including Brazil and Indonesia, ranked so highly, their positions reflect carbon dioxide emissions related to deforestation.

In the study, the research team used a new methodology to calculate national contributions to global warming. It weighted each type of emission according to the atmospheric lifetime of the temperature change it caused. Using data from 1750 onward, the team accounted for carbon dioxide contributions from fossil fuel burning and land-use change, along with methane, nitrous oxide and sulphate aerosol emissions.

Matthews and his colleagues also experimented with scaling the emissions to the size of the corresponding area. Western Europe, the U.S., Japan and India are hugely expanded, reflecting emissions much greater than would be expected based on their geographic area. Russia, China and Brazil stay the same. Taken in this light, the climate contributions of Brazil and China don't seem so out of line they are perfectly in proportion with the countries' landmasses. Of course, Canada and Australia become stick thin, being countries whose geography is much larger than their share of the global warming pie.

Meanwhile, dividing each country's climate contribution by its population paints a different picture. Amongst the 20 largest total emitters, developed countries occupy the top seven per-capita positions, with Canada falling in third place behind the U.K. and the United States. And in this ranking, China and India drop to the bottom of the list.

Matthews's study highlights how much individual countries have contributed to the climate problem, as well as the huge disparity between rich and poor with respect to per-person contributions to global warming. Acknowledging these disparities, and then moving to correct them, may be a fundamental requirement for success in efforts to decrease global greenhouse-gas emissions.


'/>"/>

Contact: Clea Desjardins
clea.desjardins@concordia.ca
514-848-242-45068
Concordia University
Source:Eurekalert

Related biology news :

1. Global Bioinformatics Market 2013 - 2017
2. Loss of large carnivores poses global conservation problem
3. National Academy of Inventors 2013 Conference showcased global innovation
4. Biogen Idec and Sangamo BioSciences Announce Global Collaboration to Develop Treatments for Hemoglobinopathies
5. EcoHealth Alliance and Bat Conservation International forge partnership to work on global bat conservation and public health issues
6. Cloud mystery solved: Global temperatures to rise at least 4C by 2100
7. Cloud mystery solved: Global temperatures to rise at least 4°C by 2100
8. UNL research raises concerns about global crop projections
9. Telecoupling science shows Chinas forest sustainability packs global impact
10. Global Cancer Biomarkers Market 2012-2016 with Agilent Technologies Inc., Gen-Probe Inc. and Astellas Pharma US Inc. Dominating
11. Singapore joins global translational medicine network as Asia-Pacific hub
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/16/2016)... -- Research and Markets has announced the addition of ... 2021" report to their offering. ... The biometric vehicle access system market, in ... 14.06% from 2016 to 2021. The market is estimated to be ... Million by 2021. The growth of the biometric vehicle access system ...
(Date:12/15/2016)... , Dec 15, 2016 ... Research and Markets has announced the addition ... offering. The report forecasts the global military biometrics market ... The report has been prepared based on an in-depth market ... and its growth prospects over the coming years. The report also includes ...
(Date:12/12/2016)... -- Researchers at Trinity College, Dublin, are opening up ... material with Silly Putty. The mixture (known as "G-putty") ... sense pulse, blood pressure, respiration, and even the ... The research team,s findings were published Thursday in ... Due ...
Breaking Biology News(10 mins):
(Date:1/17/2017)... Jan. 17, 2017   Pulmatrix, Inc . (NASDAQ: ... developing innovative inhaled therapies to address serious pulmonary diseases, ... infections in the lungs of CF patients, PUR1900, has ... by the U.S. Food & Drug Administration. ... to speed the development of novel drugs against important ...
(Date:1/17/2017)...  Only nine percent of U.S. consumers believe pharmaceutical ... 16 percent believe health insurance companies do, according to ... of U.S. adults believe health care providers (such as ... hospitals (23%). "We are in the midst ... , vice president of reputation management and public affairs ...
(Date:1/17/2017)... (PRWEB) , ... January 17, 2017 , ... Pono ... balanced, peaceful and healthy lifestyle, announced today the official launch of its much-anticipated Pono ... the mind. , In development for over a year, the patented Pono ...
(Date:1/17/2017)... ... January 17, 2017 , ... Diagenode, ... recently announced a collaboration with the Heidelberg University Hospital and the German Cancer ... preparation, following the company’s successful launch of its CATS (Capture and Amplification ...
Breaking Biology Technology: