Showing posts with label Gulf of Mexico. Show all posts
Showing posts with label Gulf of Mexico. Show all posts

09 April 2011

Preparing for the Next Public Health Crisis


Establishing a Public Health Response Plan to 

Address Threats Such as the Gulf Oil Disaster

SOURCE: AP/Patrick Semansky
Workers clean up the gulf shore. The BP disaster reiterates 
why we need to better manage the short- and long-term 
responses required to address the public health threats 
such disasters pose whether they are manmade or due 
to natural causes.
We’ve all seen pictures of the dreadful and continuing aftermath of the explosion on the Deepwater Horizon oil well in the Gulf of Mexico. The environmental cleanup and the economic consequences of this will last far into the future, and it’s hard to imagine that the time will come when fumes from oil, chemicals, and burning no longer pollute the air, oceans aren’t covered with sheets of oil, beaches aren’t stained with tar, and marshes aren’t clogged with residues. But with hard work that will eventually be the case. At that point the Unified Command—which was established under U.S. Coast Guard leadership to manage the response to this disaster—will fold, the cleanup workers will go home, and the raft of workers brought in from diverse agencies as part of the emergency response will be pulled back to deal with other more urgent tasks.
But health threats from the oil spill may linger unseen, perhaps for more than a generation. And we will not be fully prepared to address the public health problems that arise in the future unless there is an effective and coordinated handover of responsibilities for protecting public health from the emergency response agencies to agencies with the capability and capacity for long-term monitoring and management. Federal agencies have been pulled in as needed in the gulf spill response, but it’s not clear that the Health and Human Services response has been synchronized from the top to ensure effective delivery and coordination.
In short, the spill reiterates why we need to better manage the short- and longterm responses required to address the public health threats such disasters pose whether they are manmade or due to natural causes.
No systematic long-term monitoring and oversight was put in place with the Exxon Valdez spill in 1989, and now we wonder what we missed. Several studies following the Prestige oil spill off the coast of Spain in 2002 indicate that some respiratory problems in cleanup workers didn’t show up until years after the spill. Additionally, evidence suggests DNA damage occurred to these workers that could lead to cancers and alterations in hormone status.
The responsibility for both the immediate and long-term responses can only be led by the administration from the highest levels. This is not an appropriate role for corporations, which cannot be trusted to put the long-term interests and needs of the affected communities ahead of their business concerns. The BP oil spill is a clear example of why we cannot allow the very corporation that caused the problem in the first place to be trusted with monitoring its potential health effects. The protection of public health has always been a key responsibility of the federal government, and we have previously called for the federal government to takeover this responsibility with respect to the gulf oil spill.
The gulf oil crisis reminds us that it is essential to have a response plan that is activated early and can continue into the future for as long as needed.
This is not the first time the nation has faced such a crisis, and it won’t be the last. We have faced public health threats from the World Trade Center attack on 9/11, Hurricane Katrina, and the Exxon Valdez oil spill, and from infectious agents such as SARS, Avian flu, and H1N1 flu that fortunately did not reach crisis proportions but could have. The responses, while effective, have not been always been well coordinated. The Government Accountability Office in 2008 identified important lessons from the WTC response that could help develop responder health programs in the event of a future disaster, but the GAO recommendations have not been fully addressed.
The gulf oil crisis reminds us that it is essential to have a response plan that is activated early and can continue into the future for as long as needed. We need to establish an architecture complete with clear lines of responsibilities and acknowledged trigger points for action. It should facilitate the involvement of the appropriate federal health agencies in addressing a potential public health emergency— from watchful waiting to emergency response to long-term monitoring and management.
We do not need a new entity to put this system in place. Government has the expertise among the many HHS agencies to handle any given public health emergency, but different players may be called on at different times depending on the event. This transfer of responsibilities will occur mostly between HHS agencies, but it may also involve nonhealth agencies as well. Obviously this is now the case with the gulf oil crisis, but it could occur with other incidents as well. With a large-scale infectious agent attack, for example, medication may need to be delivered to the homes of many affected Americans, and it has been suggested that the U.S. Postal Service could fill this role since they know how to get parcels to nearly every U.S. home.
We propose that a single, high-ranking HHS official be designated to launch and oversee the coordinated response plan implemented whenever a situation arises that can threaten public health. We recommend this leadership role go to the assistant secretary for health, or ASH. The ASH should have responsibility for determining when and how the response to a public health threat moves into the initial emergency phase and when it transitions to a long-term monitoring and management phase. The ASH would have responsibility for ensuring—in conjunction with other federal, state, and local agencies, academics, and the private sector—that needed services are delivered and information is collected, and that data, information, and resources are transferred to the responsible HHS agency or agencies.
This approach does not require new agencies or significant new authorities. But it will require the following:
  • Clarification of roles and responsibilities of all agencies and offices involved
  • Robust surveillance systems with standardized data that can analyze information collected from a variety of sources
  • Sufficient financial resources and the appropriate workforce to develop capacity and maintain long-term monitoring systems
  • Mechanisms in place to address ongoing medical needs for individuals affected by the crisis
  • A financial infrastructure to assure funding is available for immediate and longer-term health needs
This paper looks at the issues that must be addressed in the immediate (emergency) response situation to facilitate the eventual handover to a long-term monitoring and management system, what that system should incorporate, how to trigger the emergency response and the long-term monitoring phase, and how the different agencies should work together in a seamless fashion. But first, it examines how our current system lacks an overall plan to maximize the contribution of all available agencies and organize the strongest possible public health response.

23 December 2010

methane hydrates: Published Apr 3 2005 ( !!!) by The Guardian (UK)

US in race to unlock new energy source

by David Adam

More than a mile below the choppy Gulf of Mexico waters lies a vast, untapped source of energy. Locked in mysterious crystals, the sediment beneath the seabed holds enough natural gas to fuel America's energy-guzzling society for decades, or to bring about sufficient climate change to melt the planet's glaciers and cause catastrophic flooding, depending on whom you talk to.

No prizes for guessing the US government's preferred line. This week it will dispatch a drilling vessel to the region, on a mission to bring this virtually inexhaustible new supply of fossil fuel to power stations within a decade.

The ship will hunt for methane hydrates, a weird combination of gas and water produced in the crushing pressures deep within the earth - literally, ice that burns.

The stakes could not be higher: scientists reckon there could be more valuable carbon fuel stored in the vast methane hydrate deposits scattered under the world's seabed and Arctic permafrost than in all of the known reserves of coal, oil and gas put together.

"The amount of energy there is just too big to ignore," said Bahman Tohidi, head of the centre for gas hydrate research at Heriot Watt University in Edinburgh. "It's not easy, but it's not something we can say we can't do so let's forget about it."

Britain may miss out on any future methane hydrate boom - the North Sea is too shallow and no deposits have been found in the deeper waters further north - but other countries have recognised their potential. Japan, India and Korea, as well as the United States, are investing millions of pounds in hydrate research.
Ray Boswell, who heads the hydrate programme at the US department of energy's national energy technology laboratory, said the US was determined to be the first to mine the resource.

"Commercially viable production is definitely realistic within a decade. The world is investing in hydrates, and one reason for us to do this is to maintain our leadership position in this emerging technology."

Its new project will see the drilling vessel Uncle John spend about a month in the Gulf of Mexico, where it will bore down to two of the largest expected methane hydrate deposits in the region. Scientists on the ship will collect samples for experiments to see how the methane might be freed and transported to the surface.

This is harder than it sounds. In some deposits the crystals occur in thick layers, in others they are found as smaller nuggets. Puncture one hydrate reservoir and the giant release of gas can disrupt drilling, pierce another and getting the methane out is like sucking porridge through a straw.

This unpredictable nature means energy companies traditionally view hydrates as a nuisance. This gives them a joint interest with the US government as both sides want to know where the crystals are - one to avoid them and the other to exploit them.


Mr Boswell said:

"We have a marriage of near-term industry interests and longer-term government interests. If they develop the ability to detect hydrates for the purpose of avoiding them, that's useful for people who want to do the exact same thing for the purpose of finding them."
Devinder Mahajan, a chemist at the US department of energy's laboratory in Brookhaven, is looking for ways to encourage subsea hydrate deposits to release their methane. He has developed a pressurised tank that allows scientists to study hydrate formation. "You fill the vessel with water and sediment, put in methane gas and cool it down under high pressure. After a few hours, the hydrates form, you can actually see it. They look like ice, but they're not," he said. "This is a very important issue, tied to our future national energy security."

Hydrates on land are easier to get at, and in 2003 a team of oil companies and scientists from Canada, Japan, India, Germany and the US showed it was possible to produce methane from the icy deposits below Canada's Northwest Territories. BP and the US government are carrying out similar experiments in Alaska.
Environmental groups oppose attempts to extract methane from hydrate reserves.

Roger Higman, a climate change campaigner with Friends of the Earth, said: 

"The Americans are desperately looking around trying to boost their fossil fuels because they think the oil is going to run out or there's going to be a scarcity. The actual scarcity is in the space the atmosphere has for taking the carbon dioxide that burning methane produces."

He added: 

"We already have enough fossil fuel in the world that, if burnt, will ruin the world's climate. Rather than look for more, we need to keep the oil, gas and coal we already know about underground and develop alternative sources of energy, principally renewables."

Paul Johnston, a scientist in the Greenpeace laboratory at Exeter University, warned that disturbing hydrate deposits under the seabed was a risky strategy.

"There are legitimate concerns that attempts to tap into these reserves could cause very widespread destabilisation of the seabed and damage to ecosystems," 
 he said.

Methane is a far more potent greenhouse gas than carbon dioxide, he said, and any released during production would make global warming worse.

Mr Boswell said methane was more environmentally friendly than oil and coal, because it produced less carbon dioxide when burnt.

"The prudent approach is to address all the avenues for supplying future energy," he said. "People who say it has to be one or the other, I think, are putting too many eggs in one basket."