Navigation Links
Ocean fertilization summary for policymakers published
Date:1/31/2011

Failure to tackle rising greenhouse gas emissions effectively has led to intensifying debate on geoengineering - deliberate large-scale schemes to slow the rate at which Earth is heating up. The public debate often mixes opinion with fact so scientists have now released the first summary for policymakers on ocean fertilization, one of the earliest geoengineering proposals. The authors report that the chances of success of using ocean fertilization to deal with climate change is low.

Ocean fertilization involves adding iron or other nutrients to the surface of the ocean to trigger growth of microscopic marine plants. These plants use dissolved carbon dioxide to grow, which led to the idea that deliberate fertilization of the ocean on a large scale would remove carbon dioxide from the atmosphere.

Lead author of the report Professor Doug Wallace from the Leibniz-Institut fr Meereswissenschaften (IFM-GEOMAR) says: "The published findings suggest that even very large-scale fertilization would remove only modest amounts of carbon dioxide from the atmosphere over 100 years".

For two decades, marine scientists have been carrying out a series of small-scale fertilization experiments to understand how ocean ecosystems respond to environmental change. However the experiments were not designed to address issues relating to geoengineering. Proposals to scale up this approach to slow climate warming or be included within emissions trading schemes to generate carbon credits have stimulated intense debate and criticism amongst scientists and the public.

The new summary, involving independent scientists from seven countries, explains the complexity of the underlying science and brings the detailed findings together in an accessible form for policymakers.

The summary notes that there are still major knowledge gaps. For example, it is unclear whether findings from small-scale experiments apply fully to larger scales. And a major concern is the possibility of large-scale fertilization having unintended consequences for ecosystems. The summary points out the extreme difficulty of assessing long-term effectiveness or unintended side effects.

"It's vastly more complex than assessing carbon storage in a forest" says Wallace "the carbon, and many of the potential impacts, are largely invisible and likely to be spread over vast distances".

Publication of the summary coincides with a symposium in California (La Jolla) on the ecosystem impacts of proposed geoengineering schemes and organized by the International Geosphere-Biosphere Programme. The one-day symposium, streamed live online, will bring together the world's leading experts in this area of research.


'/>"/>

Contact: Owen Gaffney
owen.gaffney@igbp.kva.se
468-673-9556
International Geosphere-Biosphere Programme
Source:Eurekalert

Related biology news :

1. Newly discovered group of algae live in both fresh water and ocean
2. Hot-bunking bacterium recycles iron to boost ocean metabolism
3. Oxygen-free early oceans likely delayed rise of life on planet
4. Oceanic garbage patch not nearly as big as portrayed in media
5. Canadian marine biodiversity scientists forging strategy for sustainable ocean use
6. Whale-inspired ocean turbine blades
7. Busy microbial world discovered in deepest ocean crust ever explored
8. Listening for ocean spills and their ecological effects
9. LSU oceanography researcher discovers toxic algae in open water
10. Sharks and wolves: Predator, prey interactions similar on land and in oceans
11. New ocean acidification study shows added danger to already struggling coral reefs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/28/2017)... PUNE, India , March 28, 2017 ... (Analog, IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), ... Maintenance), Vertical, and Region - Global Forecast to 2022", ... 30.37 Billion in 2016 and is projected to reach ... 15.4% between 2017 and 2022. The base year considered ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based and Touchless), ... published by MarketsandMarkets, the market is expected to be worth USD 18.98 billion ... Continue Reading ... ...      (Logo: ...
(Date:3/22/2017)... March 21, 2017 Vigilant Solutions , ... law enforcement agencies, announced today the appointment of retired ... of public safety business development. Mr. Sheridan ... experience, including a focus on the aviation transportation sector, ... recent position, Mr. Sheridan served as the Aviation Liaison ...
Breaking Biology News(10 mins):
(Date:7/18/2017)... ... 18, 2017 , ... Blood centers traditionally see a dangerous drop of blood ... a struggle for community blood centers as high schools are out and many frequent ... is teaming up with the South Texas Blood & Tissue Center ...
(Date:7/17/2017)... ... July 17, 2017 , ... The Academy of Model Aeronautics ... National Model Aviation Day will take place from 9 a.m. to 2 p.m. at ... activities for all ages. , Aviation Adventure Day will be packed with entertaining activities ...
(Date:7/17/2017)... ... July 17, 2017 , ... Panitch Schwarze Belisario & ... the BiG (Biomedical Innovation Group) annual meeting in China. , This year’s meeting, ... receptor T-cell) therapy, a rapidly developing highly personalized anti-cancer technology that involves removing ...
(Date:7/16/2017)... ... 16, 2017 , ... OHAUS Corporation, a leading worldwide manufacturer ... new line of Extreme Environment Shakers today. , Extreme Environment Shakers , OHAUS ... optimal cell growth such as cell cultures, solubility studies and extraction procedures. These ...
Breaking Biology Technology: