Welcome to FIS   Sponsored By
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


Oceans and forests are absorbing half the carbon dioxide emitted by human activities. (Photo: NOAA/FIS)

Oceans absorbing half the carbon dioxide of the world

WORLDWIDE
Thursday, August 02, 2012, 22:40 (GMT + 9)

Earth’s oceans, forests and other ecosystems continue to soak up about half the carbon dioxide emitted into the atmosphere by human activities, even as those emissions have increased, according to a study by University of Colorado and National Oceanic and Atmospheric Administration (NOAA) scientists published in the journal Nature.

The scientists analysed 50 years of global carbon dioxide (CO2) measurements and found that the processes by which the planet’s oceans and ecosystems absorb the greenhouse gas are not yet at capacity.

“Globally, these carbon dioxide ‘sinks’ have roughly kept pace with emissions from human activities, continuing to draw about half of the emitted CO2 back out of the atmosphere. However, we do not expect this to continue indefinitely,” said NOAA’s Pieter Tans, a climate researcher with NOAA’s Earth System Research Laboratory in Boulder, Colorado, and co-author of the study.

Carbon dioxide is emitted into the atmosphere mainly by fossil fuel combustion but also by forest fires and some natural processes. The gas can also be pulled out of the atmosphere into the tissues of growing plants or absorbed by the waters of Earth’s oceans.

A series of recent studies suggested that natural sinks of carbon dioxide might no longer be keeping up with the increasing rate of emissions. If that were to happen, it would cause a faster-than-expected rise in atmospheric carbon dioxide and projected climate change impacts.

(Source: NOAA)

The University of Colorado’s Ashley Ballantyne, who is the lead author, Tans and their colleagues saw no faster-than-expected rise, however. Their estimate showed that overall, oceans and natural ecosystems continue to pull about half of people’s carbon dioxide emissions out of the atmosphere.

Since emissions of CO2 have increased substantially since 1960, Ballantyne said, "Earth is taking up twice as much CO2 today as it was 50 years ago."

The rest continues to accumulate in the atmosphere, where it is likely to accelerate global warming.

This new global analysis makes it clear that scientists do not yet understand well enough the processes by which ecosystems of the world are removing CO2 from the atmosphere, or the relative importance of possible sinks: regrowing forests on different continents, for example, or changing absorption of carbon dioxide by various ocean regions.

“Since we don’t know why or where this process is happening, we cannot count on it,” Tans said. “We need to identify what’s going on here, so that we can improve our projections of future CO2 levels and how climate change will progress in the future.”

The team dissected the long-term records of CO2 levels measured by NOAA and the Scripps Institution of Oceanography at remote sites around the world.

The researchers also scrutinized national and international inventories or bookkeeping estimates of CO2 emissions by people and compared those to the increasing atmospheric levels of the gas.

“As the oceans acidify, we know it becomes harder to stuff even more CO2 into the oceans,” Tans said. “We just don’t see a letup, globally, yet."

[email protected]
www.fis.com

Photo Courtesy of FIS Member  National Oceanic and Atmospheric Administration NOAA/NMFS
 Print


Click to know how to advertise in FIS
MORE NEWS
Russian Federation
Oct 29, 08:00 (GMT + 9):
IN BRIEF - Crisis in the Pollock Catchers Association: Russian Fishery Company 'sailed to court'
European Union
Oct 29, 08:00 (GMT + 9):
The fisheries Brexit negotiation must exclude the privileges that the Common Fisheries Policy has granted to the UK since its inception
Mauritania
Oct 29, 05:00 (GMT + 9):
CEPESCA publishes the images of the rescue yesterday by the F/V 'Riodomar IV' of 215 immigrants
Maldives
Oct 29, 05:00 (GMT + 9):
Media Statement from Government of Maldives on the status of Indian Ocean yellowfin tuna stock (video)
European Union
Oct 29, 01:30 (GMT + 9):
Otros Medios | Industrias Pesqueras: La EUFA demanda que el acuerdo de ‘brexit’ acabe con los 'privilegios' de Reino Unido en la PPC
Russian Federation
Oct 29, 01:00 (GMT + 9):
Federal Agency for Fishery report on salmon season and roes
Spain
Oct 29, 00:50 (GMT + 9):
Other Media | Alimarket: Carrefour increases its sales by 7.5% from January to September
European Union
Oct 29, 00:00 (GMT + 9):
Other Media | La Voz de Galicia: Brussels proposes new cuts for hake, monkfish and Iberian rooster
Russian Federation
Oct 28, 20:00 (GMT + 9):
As of October 26, Russian fishermen have caught more than 4.2 million tonnes
Norway
Oct 28, 19:00 (GMT + 9):
Fish Pool Salmon Price Status Report for week 44
Solomon Islands
Oct 28, 17:00 (GMT + 9):
Operation Kurukuru air surveillance on Illegal, Unregulated and Unreported (IUU) fishing
Japan
Oct 28, 16:30 (GMT + 9):
Auction prices for common squid (surume ika, todarodes pacificus) frozen on board │ Ogi market (until oct-23)
United States
Oct 28, 09:00 (GMT + 9):
What threat do microplastics, a.k.a. ‘ocean hitchhikers’, pose to aquaculture?
United States
Oct 28, 07:00 (GMT + 9):
PRESS RELEASE - NWAA STATEMENT REGARDING PATAGONIA AND THE WILD FISH CONSERVANCY (video)
France
Oct 28, 05:50 (GMT + 9):
Mediterranean bluefin tuna fishery now MSC certified



Lenguaje
FEATURED EVENTS
  
TOP STORIES
The course of pelagic fishing week 43
Norway This autumn's best NVG herring week and less mackerel from the North Sea Mackerel: We received significantly smaller quantities of mackerel than in the previous three weeks. A total of 23,100 to...
Statistics │ Import by origin │Crab │ September 2020
South Korea Source: FIS.com | Click to enlarge it [email protected] www.fis.com...
Tuna exports to Italy soar in September
Viet Nam NDO/VNA – Vietnam’s tuna exports to Italy soared by 8,599% last month over the same period last year. This staggering increase transformed Italy into Vietnam's largest tuna market in the EU in ...
Coast Guard saves sinking fishing vessel near Icy Bay, Alaska
United States KODIAK, Alaska — The Coast Guard assisted a fishing vessel taking on water and disabled, six miles south of Icy Bay, Alaska, Wednesday. A Coast Guard Air Station Sitka MH-60 Jayhawk helicopte...
 
Maruha Nichiro Corporation
Nichirei Corporation - Headquarters
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation - Wartsila Group Headquarters
ITOCHU Corporation - Headquarters
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
AquaChile S.A. - Group Headquarters
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods, Inc
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO - Food and Agriculture Organization - Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Brim ehf (formerly HB Grandi Ltd) - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Mowi ASA (formerly Marine Harvest ASA) - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation - Headquarters
Cooke Inc. - Group Headquarters
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart | Wal-Mart Stores, Inc. (Supermarket) - Headquarters
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2020 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER