Featured Research

from universities, journals, and other organizations

Cost of Arctic methane release could be 'size of global economy', experts warn

Date:
July 24, 2013
Source:
University of Cambridge
Summary:
Researchers have warned of an "economic time-bomb" in the Arctic, following a ground-breaking analysis of the likely cost of methane emissions in the region. Economic modelling shows that the methane emissions caused by shrinking sea ice from just one area of the Arctic could come with a global price tag of 60 trillion dollars -- the size of the world economy in 2012.

Iceberg.
Credit: kathoo17 / Fotolia

Researchers have warned of an "economic time-bomb" in the Arctic, following a ground-breaking analysis of the likely cost of methane emissions in the region.

Related Articles


Economic modelling shows that the methane emissions caused by shrinking sea ice from just one area of the Arctic could come with a global price tag of 60 trillion dollars -- the size of the world economy in 2012.

Writing in a Comment piece in the journal, Nature, academics argue that a significant release of methane from thawing permafrost in the Arctic could have dire implications for the world's economy. The researchers, from Cambridge and Rotterdam, have for the first time calculated the potential economic impact of a scenario some scientists consider increasingly likely -- that methane from the East Siberian Sea will be emitted as a result of the thaw.

This constitutes just a fraction of the vast reservoirs of methane in the Arctic, but scientists believe that the release of even a small proportion of these reserves could trigger possibly catastrophic climate change. According to the new assessment, the emission of methane below the East Siberian Sea alone would also have a mean global impact of 60 trillion dollars.

The ground-breaking Comment piece was co-authored by Gail Whiteman, from Erasmus University; Chris Hope, Reader in Policy Modelling at Cambridge Judge Business School, University of Cambridge; and Peter Wadhams, Professor of Ocean physics at the University of Cambridge.

"The global impact of a warming Arctic is an economic time-bomb," Whiteman, who is Professor of sustainability, management and climate change at Rotterdam School of Management, Erasmus University (RSM), said.

Wadhams added: "The imminent disappearance of the summer sea ice in the Arctic will have enormous implications for both the acceleration of climate change, and the release of methane from off-shore waters which are now able to warm up in the summer. This massive methane boost will have major implications for global economies and societies."

Most discussion about the economic implications of a warming Arctic focuses on benefits to the region, with increased oil-and-gas drilling and the opening up of new shipping routes that could attract investments of hundreds of billions of dollars. However, the effects of melting permafrost on the climate and oceans will be felt globally, the authors argue.

Applying an updated version of the modelling method used in the UK government's 2006 Stern Review on the Economics of Climate Change, and currently used by the US Environmental Protection Agency, the authors calculate the global consequences of the release of 50 gigatonnes of methane over a decade from thawing permafrost beneath the East Siberian Sea.

"The methane release would bring forward the date at which the global mean temperature rise exceeds 2 degrees C by between 15 and 35 years," said Chris Hope. "In the absence of climate-change mitigation measures, the PAGE09 model calculates that it would increase mean global climate impacts by $60 trillion."

If other impacts such as ocean acidification are factored in, the cost would be much higher. Some 80% of these costs will be borne by developing countries, as they experience more extreme weather, flooding, droughts and poorer health, as Arctic warming affects climate.

The research also explored the impact of a number of later, longer-lasting or smaller pulses of methane, and the authors write that, in all these cases, the economic cost for physical changes to the Arctic is "steep."

The authors write that global economic institutions and world leaders should "kick-start investment in rigorous economic modelling" and consider the impacts of a changing Arctic landscape as far outweighing any "short-term gains from shipping and extraction."

They argue that economic discussions today are missing the big picture on Arctic change. "Arctic science is a strategic asset for human economies because the region drives critical effects in our biophysical, political and economic systems," write the academics. Neither the World Economic Forum nor the International Monetary Fund currently recognise the economic danger of Arctic change.

According to Whiteman, "Global leaders and the WEF and IMF need to pay much more attention to this invisible time-bomb. The mean impacts of just this one effect -- $60 trillion -- approaches the $70-trillion value of the world economy in 2012."


Story Source:

The above story is based on materials provided by University of Cambridge. The original story is licensed under a Creative Commons Licence. Note: Materials may be edited for content and length.


Journal Reference:

  1. Gail Whiteman, Chris Hope, Peter Wadhams. Climate science: Vast costs of Arctic change. Nature, 2013; 499 (7459): 401 DOI: 10.1038/499401a

Cite This Page:

University of Cambridge. "Cost of Arctic methane release could be 'size of global economy', experts warn." ScienceDaily. ScienceDaily, 24 July 2013. <www.sciencedaily.com/releases/2013/07/130724134256.htm>.
University of Cambridge. (2013, July 24). Cost of Arctic methane release could be 'size of global economy', experts warn. ScienceDaily. Retrieved April 24, 2015 from www.sciencedaily.com/releases/2013/07/130724134256.htm
University of Cambridge. "Cost of Arctic methane release could be 'size of global economy', experts warn." ScienceDaily. www.sciencedaily.com/releases/2013/07/130724134256.htm (accessed April 24, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Friday, April 24, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dispute Flares Over Controversial Thai Temple Tigers

Dispute Flares Over Controversial Thai Temple Tigers

AFP (Apr. 24, 2015) Thai wildlife officials begin a headcount of nearly 150 tigers kept by monks at a temple which has become the centre of a dispute over the welfare of the animals. Video provided by AFP
Powered by NewsLook.com
The Volcano Under Yellowstone Is Way Bigger Than We Thought

The Volcano Under Yellowstone Is Way Bigger Than We Thought

Newsy (Apr. 24, 2015) Researchers have discovered a second and larger magma reservoir under Yellowstone National Park, but say the risk of a large eruption is the same. Video provided by Newsy
Powered by NewsLook.com
Chile Volcano Cloud Spreads

Chile Volcano Cloud Spreads

Reuters - News Video Online (Apr. 24, 2015) Southern Argentina struggles to cope with a blanket of ash after the eruption of the Calbuco volcano in Chile. Rough cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Thousands Evacuate As Chile Volcano Erupts Twice In 24 Hours

Thousands Evacuate As Chile Volcano Erupts Twice In 24 Hours

Newsy (Apr. 23, 2015) Chile&apos;s Calbuco volcano erupted twice in a span of 24 hours, once Wednesday evening and again early Thursday morning. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins