posted 08-25-2002 10:05 AM
More Information of Possible Relevance to Conditions Observed Along the California Coast:Ocean Carbon Sequestration
http://www.lbl.gov/Science-Articles/Archive/sea-carb-bish.html
[NOTE: Ocean carbon sequestration is different than ocean iron fertilization in that sequestration has to do with actual storage of excess atmospheric CO2 [in liquid form] on the ocean bottom -- whereas iron fertilization has to do with pumping up the proliferation of CO2-sucking algae by adding iron to the selected area.]
Excerpt from above-referenced material:
.....One of the most promising places to sequester carbon is in the oceans, which currently take up a third of the carbon emitted by human activity, roughly two billion metric tons each year. The amount of carbon that would double the load in the atmosphere would increase the concentration in the deep ocean by only two percent.
Two sequestration strategies are under intense study at the Department of Energy's Center for Research on Ocean Carbon Sequestration (DOCS), where Jim Bishop of Berkeley Lab's Earth Sciences Division is codirector with Livermore Lab's Ken Caldeira. One is direct injection, which would pump liquefied carbon dioxide a thousand meters deep or deeper, either directly from shore stations or from tankers trailing long pipes at sea.
"At great depths, CO2 is denser than sea water, and it may be possible to store it on the bottom as liquid or deposits of icy hydrates," Bishop explains. "At depths easy to reach with pipes, CO2 is buoyant; it has to be diluted and dispersed so it will dissolve."
What happens to carbon dioxide introduced into the ocean in this way may soon be field-tested in Hawaii. Over a two-week period researchers plan to inject 40 to 60 metric tons of pure liquid CO2 over 2,500 feet deep in the ocean near the Big Island.
One variable they will be measuring is acidity. Water and carbon dioxide form carbonic acid, "but once diluted in sea water, carbonic acid is not the dominant chemical species," Bishop says, "because of seawater's high alkalinity and buffering capacity." If calcium carbonate sediments are involved, acidity is even less. "Think of Tums," he suggests......
7/13/01
President George W. Bush
Statement on Climate Change http://www.usis.usemb.se/Environment/bush_on_climate_change.html
Last month, I announced the fundamental principles to guide a scientifically sound and effective global effort to reduce the buildup of greenhouse gases in the atmosphere. As I said then, my Administration's climate change policy will be science-based, encourage research breakthroughs that lead to technological innovation, and take advantage of the power of markets. It will encourage global participation and will pursue actions that will help ensure continued economic growth and prosperity for our citizens and for citizens throughout the world.
Today I am pleased to report on specific initiatives that have been advanced in the past month by my Cabinet-level climate change working group. These initiatives represent important steps in putting our principles to work through partnerships with other nations, industry and non-governmental organizations. They are designed to increase our scientific understanding of climate change, to tap the enormous promise of technology in addressing greenhouse gas emissions, and to promote further cooperation on climate change with our partners in the Western Hemisphere and beyond.
To advance the science of climate change, the Secretary of Commerce has convened an interagency work group charged with developing a federal research plan that will prove vital to increasing our understanding of the dimensions and dynamics of climate change. Prominently, NASA will invest over $120 million in the next three years in research on the natural carbon cycle, climate modeling, and the link between atmospheric chemistry and climate to help reduce uncertainties in the science highlighted by the recent National Academy of Sciences report requested by my Cabinet-level working group.
To advance technological innovation, the Department of Energy has just signed agreements to begin two significant new projects to study carbon sequestration. The first agreement is with The Nature Conservancy, the world's largest private international conservation group, to study land use and forestry practices for storing carbon more effectively in Brazil and Belize. The second is with an international team of energy companies - BP-Amoco, Shell, Chevron, Texaco, Pan Canadian (Canada), Suncor Energy (Canada), ENI (Italy), Statoil Forskningssenter (Norway) and Norsk Hydro (Norway) - to develop a new set of technologies for reducing the cost of capturing carbon dioxide from fossil fuel combustion plants. Grants for six other sequestration research projects have also been awarded under this $25 million initiative that leverages an additional $50 million from the private sector and foreign governments.
To further cooperation in the Western Hemisphere and beyond on climate change, the Department of Treasury yesterday entered into a $14 million "debt for forest" agreement with the Government of El Salvador under the Tropical Forest Conservation Act. By funding tropical forest conservation in that country, the agreement will secure important benefits of carbon sequestration and climate change mitigation.
Fostering further scientific cooperation on climate change among nations in our hemisphere, the Department of Commerce is bringing together more than one hundred scientists from the United States, Mexico and South America to study the regional impacts of climate change, another important area of uncertainty highlighted by the National Academy of Sciences study.
My Environmental Protection Agency Administrator also met with the Canadian and Mexican environment ministers on June 29 and pledged to jointly consider "market-based approaches for carbon sequestration, energy efficiency and renewable energy in North America." Today, the United States will host a meeting with the Japanese Environment Minister at which they will focus on opportunities for bilateral cooperation on climate change, including enhanced, joint climate modeling research.
Finally, in keeping with my commitment to engage internationally, the United States has participated and will continue to participate constructively in international discussions on climate change, including in the upcoming Sixth Conference of the Parties to the Framework Convention on Climate Change (COP-6) that begins this Monday in Bonn, Germany.
These initiatives illustrate the efforts my Administration will continue to encourage strongly. These partnerships leverage resources to achieve tangible results. In many cases, their scope is international, reflecting the fact that both the problem and solutions for climate change extend beyond the borders of any one nation. And they represent the kind of investments in scientific and technological knowledge on which real progress on this long-term challenge must be based. I am pleased that those who are signing agreements with us or who have otherwise pledged to pursue joint research with our government share our vision of enhancing our knowledge and making progress on this important issue.
DOE: Fossil Energy
http://www.fe.doe.gov/coal_power/sequestration/index.shtml
Carbon Sequestration
Fossil fuels will remain the mainstay of energy production well into the 21st century. Availability of these fuels to provide clean, affordable energy is essential for the prosperity and security of the United States. However, increased concentrations of carbon dioxide (CO2) due to carbon emissions are expected unless energy systems reduce the carbon emissions to the atmosphere.
To stabilize and ultimately reduce concentrations of this greenhouse gas, it will be necessary to employ carbon sequestration - carbon capture, separation and storage or reuse.
Carbon sequestration, along with reduced carbon content of fuels and improved efficiency of energy production and use, must play major roles if the nation is to enjoy the economic and energy security benefits which fossil fuels brings to the energy mix.
The President's Committee of Advisors on Science and Technology (PCAST) underscored the importance of carbon sequestration in its report "Federal Energy Research and Development for the Challenges of the Twenty First Century." PCAST recommended increasing the U.S. Department of Energy's (DOE's) R&D for carbon sequestration.
The report stated: "A much larger science-based CO2 sequestration program should be developed. The aim should be to provide a science-based assessment of the prospects and costs of CO2 sequestration. This is very high-risk, long-term R&D that will not be undertaken by industry alone without strong incentives or regulations, although industry experience and capabilities will be very useful."
The joint Office of Fossil Energy and Office of Science April 1999 draft report Carbon Sequestration: State of the Science subsequently has assessed "...key areas for research and development (R&D) that could lead to an understanding of the potential for future use of carbon sequestration as a major tool for managing carbon emissions."..... [more]
Letters Opposing Ocean CO2 Sequestration
http://www.pacificwhale.org/alerts/CO2_articles.html
16 July 2002
Reuters
Greenpeace ship heads to Oslo to fight CO2 dumping
http://www.enn.com/news/wire-stories/2002/07/07162002/reu_47851.asp
OSLO -- Greenpeace flagship Rainbow Warrior is heading for Oslo this week to stop an experiment to dump 5.4 tons of liquid carbon dioxide in the sea off mid-Norway, a climate campaigner said Monday.
Truls Gulowsen said Greenpeace was due to host a meeting onboard the ship Wednesday among the Norwegian Environment Ministry, researchers, and environment groups aiming to stop the pilot project, designed to test disposing of CO2 in the ocean.
A consortium of research institutions from the United States, Norway, Canada, Australia, and Japan, which fund the project has decided to put the plan on hold while the ministry considers its environmental, political, and legal impacts.
The project to test ocean dumping of CO2 -- a climate gas known to damage the ozone layer -- was originally scheduled to start this summer, to determine whether the method is feasible in reducing emissions to the atmosphere.
"This experiment threatens international law designed to stop the ocean being used as a dumping ground. It must never happen," Gulowsen said. "We are very satisfied that the project is put on hold, but it is still important to spread the message that this is totally unacceptable," he said.... [more]
23 August 2002
Norway scraps experiment to dump CO2 at sea
http://www.planetark.org/dailynewsstory.cfm/newsid/17419/story.htm
OSLO - Norway bowed to protests by environmentalists yesterday and denied permission for a controversial experiment to dump tonnes of liquid carbon dioxide (CO2) into the ocean off its shores.
Carbon dioxide, produced by burning fossil fuels, is one of the gases that causes global warming. Researchers believe dumping it in liquid form deep in the ocean will help reduce the carbon dioxide buildup in the atmosphere.
Environmentalists fear high concentrations of carbon dioxide would harm marine life. Norway said it had studied the environmental and legal implications of an application by a consortium of research institutions to dump 5.4 tonnes of CO2 in the ocean.
"The possible future use of the sea as storage for CO2 is controversial," Environment Minister Boerge Brende said in a statement.
"Such a deposit could be in defiance of international marine laws and the ministry therefore had to reject the application," he said.
The ministry said the plan required more international debate.
The project is funded by research institutions from Norway, the United States, Canada, Australia and Japan, and was scheduled to start this summer.
Environmental group Greenpeace led the campaign against the experiment, saying it violated international conventions on dumping industrial waste at sea.
"The decision was in line with expectations, but is an important victory for common sense," Greenpeace campaigner Truls Gulowsen said in a statement.
[Edited 2 times, lastly by Deborah on 08-25-2002]