Saturday, April 22, 2006

This week, the Public Broadcasting Service aired a NOVA program titled “Dimming the Earth”, which presented research by leading scientists on the complex systems of our global climate and human activity’s effect on it. One of the largest interactions (or “inputs”) humans have with the atmosphere is the ever-increasing use of fossil fuels. Consumption has risen 2% per year for this decade.

Fossil fuels burnt in factories and automobiles send their waste into our atmosphere in two forms. The first is CO₂ and other greenhouse gases, which have received substantial attention in the last few years because of the way they trap heat in the atmosphere. The second is the tiny particles of sulfur dioxide, soot and ash, which scientists call aerosols (basically smog). Research into understanding the negative health effects of air pollution has resulted in the development of catalytic converters for cars as well as devices to remove particulate solids from industrial waste before it reaches the air.

More recently, atmospheric scientists have come upon the phenomenon of the reduction of direct sunlight reaching Earth’s surface— observing a nearly a 5% decline between 1960 and 1990, with evidence of a recovery since then. This has been dubbed the “global dimming” effect, and is probably due to the way these aerosols act upon clouds. It is important to realise that this does not represent a net loss of this much sunshine to the climate system – if so, large temperature declines would have been observed. Instead, the sunshine is absorbed elsewhere in the system, with a much smaller net loss.

Clouds form when moisture gathers around airborne particles, such as pollen or dust. Clouds formed by the aerosol particles emitted by fossil fuel consumption are made of many more tiny droplets than “natural” clouds. These smog-created clouds have two notable effects: they shield sunlight from reaching Earth’s surface and, due to water’s reflective nature, the millions of tiny droplets suspended in them reflect light back into space, allowing even less light to reach Earth.

Many scientists now believe that global dimming caused by these pollutants has mitigated the temperature rises brought about by global warming. Over the last thirty years, Earth’s temperature has increased by about 0.5 oC.

In the absence of global dimming, however, the Earth might be 0.3 oC warmer than it currently is, suggesting that a “tug-of-war” exists between greenhouse gases and particulates released by burning fossil fuels. Efforts to mitigate the human health dangers of smog have allowed more heat into our atmosphere and brought about a sharper increase in global warming.

Dr. James E. Hansen, professor at Columbia University and the head of the Goddard Institute for Space Studies [1], believes that if we continue on our current pattern, this warming could be as much as five degrees in the next thirty years and ten to fourteen degrees over the course of the century. Such a temperature rise would devastate life on Earth, likely bringing on a cascade of self-reinforcing warming effects. Earth’s forests drying and burning, a steady thawing of the Greenland and arctic ice sheets, and, most dangerous of all, a release of the methane hydrates that are now frozen at the bottom of the oceans, could remake the planet into something inhospitable to human life. Dr. Hansen warns that, according to his research, man has just 10 years to reduce greenhouse gases before global warming and other responses to human activity by Earth’s climate reach a “tipping point”, becoming unstoppable.

Monday, October 13, 2008

Cook Islands and Wakefield Trinity Wildcats rugby league player Adam Watene has died. The Wildcats announced the death of the 31-year-old earlier today. They reported he collapsed in the gym shortly after a training session.

A spokesman said, “The Wakefield Trinity Wildcats are sad to announce the sudden passing of Adam Watene. The circumstances surrounding Adam’s death were sudden and unexpected. Everyone at the Wildcats’ thoughts are with Adam’s family, and we ask for their privacy to be respected at this difficult time.”

Watene started his rugby league with the Castleford Tigers and was later signed by the Bradford Bulls. After a year of playing for the bulls of which he only made five first team appearances, he was allowed to sign for the Wakefield Trinity Wildcats. He played a total of 28 games in the two seasons he was with the club.

The Wildcats also said “There will be no further comment from the club at this stage.” Watene is survived by his wife and two children.

Thursday, December 18, 2008

A team of eight transplant surgeons in Cleveland Clinic in Ohio, USA, led by reconstructive surgeon Dr. Maria Siemionow, age 58, have successfully performed the first almost total face transplant in the US, and the fourth globally, on a woman so horribly disfigured due to trauma, that cost her an eye. Two weeks ago Dr. Siemionow, in a 23-hour marathon surgery, replaced 80 percent of her face, by transplanting or grafting bone, nerve, blood vessels, muscles and skin harvested from a female donor’s cadaver.

The Clinic surgeons, in Wednesday’s news conference, described the details of the transplant but upon request, the team did not publish her name, age and cause of injury nor the donor’s identity. The patient’s family desired the reason for her transplant to remain confidential. The Los Angeles Times reported that the patient “had no upper jaw, nose, cheeks or lower eyelids and was unable to eat, talk, smile, smell or breathe on her own.” The clinic’s dermatology and plastic surgery chair, Francis Papay, described the nine hours phase of the procedure: “We transferred the skin, all the facial muscles in the upper face and mid-face, the upper lip, all of the nose, most of the sinuses around the nose, the upper jaw including the teeth, the facial nerve.” Thereafter, another team spent three hours sewing the woman’s blood vessels to that of the donor’s face to restore blood circulation, making the graft a success.

The New York Times reported that “three partial face transplants have been performed since 2005, two in France and one in China, all using facial tissue from a dead donor with permission from their families.” “Only the forehead, upper eyelids, lower lip, lower teeth and jaw are hers, the rest of her face comes from a cadaver; she could not eat on her own or breathe without a hole in her windpipe. About 77 square inches of tissue were transplanted from the donor,” it further described the details of the medical marvel. The patient, however, must take lifetime immunosuppressive drugs, also called antirejection drugs, which do not guarantee success. The transplant team said that in case of failure, it would replace the part with a skin graft taken from her own body.

Dr. Bohdan Pomahac, a Brigham and Women’s Hospital surgeon praised the recent medical development. “There are patients who can benefit tremendously from this. It’s great that it happened,” he said.

Leading bioethicist Arthur Caplan of the University of Pennsylvania withheld judgment on the Cleveland transplant amid grave concerns on the post-operation results. “The biggest ethical problem is dealing with failure — if your face rejects. It would be a living hell. If your face is falling off and you can’t eat and you can’t breathe and you’re suffering in a terrible manner that can’t be reversed, you need to put on the table assistance in dying. There are patients who can benefit tremendously from this. It’s great that it happened,” he said.

Dr Alex Clarke, of the Royal Free Hospital had praised the Clinic for its contribution to medicine. “It is a real step forward for people who have severe disfigurement and this operation has been done by a team who have really prepared and worked towards this for a number of years. These transplants have proven that the technical difficulties can be overcome and psychologically the patients are doing well. They have all have reacted positively and have begun to do things they were not able to before. All the things people thought were barriers to this kind of operations have been overcome,” she said.

The first partial face transplant surgery on a living human was performed on Isabelle Dinoire on November 27 2005, when she was 38, by Professor Bernard Devauchelle, assisted by Professor Jean-Michel Dubernard in Amiens, France. Her Labrador dog mauled her in May 2005. A triangle of face tissue including the nose and mouth was taken from a brain-dead female donor and grafted onto the patient. Scientists elsewhere have performed scalp and ear transplants. However, the claim is the first for a mouth and nose transplant. Experts say the mouth and nose are the most difficult parts of the face to transplant.

In 2004, the same Cleveland Clinic, became the first institution to approve this surgery and test it on cadavers. In October 2006, surgeon Peter Butler at London‘s Royal Free Hospital in the UK was given permission by the NHS ethics board to carry out a full face transplant. His team will select four adult patients (children cannot be selected due to concerns over consent), with operations being carried out at six month intervals. In March 2008, the treatment of 30-year-old neurofibromatosis victim Pascal Coler of France ended after having received what his doctors call the worlds first successful full face transplant.

Ethical concerns, psychological impact, problems relating to immunosuppression and consequences of technical failure have prevented teams from performing face transplant operations in the past, even though it has been technically possible to carry out such procedures for years.

Mr Iain Hutchison, of Barts and the London Hospital, warned of several problems with face transplants, such as blood vessels in the donated tissue clotting and immunosuppressants failing or increasing the patient’s risk of cancer. He also pointed out ethical issues with the fact that the procedure requires a “beating heart donor”. The transplant is carried out while the donor is brain dead, but still alive by use of a ventilator.

According to Stephen Wigmore, chair of British Transplantation Society’s ethics committee, it is unknown to what extent facial expressions will function in the long term. He said that it is not certain whether a patient could be left worse off in the case of a face transplant failing.

Mr Michael Earley, a member of the Royal College of Surgeon‘s facial transplantation working party, commented that if successful, the transplant would be “a major breakthrough in facial reconstruction” and “a major step forward for the facially disfigured.”

In Wednesday’s conference, Siemionow said “we know that there are so many patients there in their homes where they are hiding from society because they are afraid to walk to the grocery stores, they are afraid to go the the street.” “Our patient was called names and was humiliated. We very much hope that for this very special group of patients there is a hope that someday they will be able to go comfortably from their houses and enjoy the things we take for granted,” she added.

In response to the medical breakthrough, a British medical group led by Royal Free Hospital’s lead surgeon Dr Peter Butler, said they will finish the world’s first full face transplant within a year. “We hope to make an announcement about a full-face operation in the next 12 months. This latest operation shows how facial transplantation can help a particular group of the most severely facially injured people. These are people who would otherwise live a terrible twilight life, shut away from public gaze,” he said.

Friday, March 3, 2006

The possibility of large-scale protests in the face of the 3,000 journalists covering the Melbourne 2006 Commonwealth Games, has event organisers and the Government worried.

The group “Black GST” – which represents Indigenous Genocide, Sovereignty and Treaty – are planning demonstrations at prominent Games events unless the Government agrees to a range of demands including an end to Aboriginal genocide, Aboriginal Sovereignty and the signing of a treaty.

The Black GST say they hope the focus of the world’s media will draw attention to the plight of indigenous Australians during the Games. Organisers say supporters are converging from across Australia and from overseas. Organisers say up to 20,000 people may take part in talks, rallies, colourful protests and many cultural festivities designed to pressure the Federal Government on Indigeneous rights issues. They want the Government to provide a temporary campsite for the supporters, saying “organised chaos was better than disorganised chaos.”

The 2006 Stolenwealth Games convergence, described by organisers as the “cultural festival of the 2006 Commonwealth Games,” was virtually opened on March 2nd with the launch of the official “Stolenwealth Games” website. Scoop Independent News and Perth Indymedia reported that the launch was held at Federation Square in Melbourne. The site contents were projected via wireless laptop by the Stolenwealth Games General Manager, and a tour of the website was given on the big screen. He said “overwhelming amusement was the response from the audience.” The group say permanent access points to the website are being set up at public internet facilities across Victoria during the coming weeks.

“Interest in the Stolenwealth Games is building all over the world and this fresh, exciting and contemporary site will draw in people from Stolenwealth Nations around the globe to find out about the latest news and events,” said a Stolenwealth Games spokesperson. “We have been getting many requests from around the world wanting to know about the Stolenwealth Games. We have provided many ways that individuals and organisations can support the campaign by spreading the word.”

The Victorian Traditional Owner Land Justice Group (VTOLJG) which represents the first nation groups of Victoria, has announced its support to boycott the 2006 Commonwealth Games until the Government “recognises Traditional Owner rights.” The group asserts that culture has been misappropriated in preparation for the Games.

Organisers of the campaign say they welcome the formal support from the Traditional Owners. “While some seek to divide and discredit Indigenous Australia, this support is further evidence that the Aboriginal people are united in opposition to the ongoing criminal genocide that is being perpetrated against the Aboriginal people” said Black GST supporter and Aboriginal Elder, Robbie Thorpe.

“We now have endorsement from the VTOLJG and the Aboriginal Tent Embassy for the aims and objectives of the Campaign and we are looking forward to hosting all indigenous and non-indigenous supporters from across Australia in March,” he said. The Black GST group have said “the convergence will be held as a peaceful, family-focussed demonstration against genocide, and for the restoration of sovereignty and the negotiations towards a Treaty.”

But the campaign has received flak in mainstream media, such as Melbourne’s Herald Sun, who wrote: “the proposal to allow BlackGST to set up an Aboriginal tent embassy at a site well away from the Commonwealth Games will be interpreted by some as the State Government caving in to a radical protest group. A major concern for the Government… is to protect the event from disruption… no chances should be taken…”

The Black GST has been planning the convergence for months, calling for Aboriginal people and their supporters to converge on Melbourne. The Melbourne-based Indigenous rights group have called on thousands of people concerned about the plight of indigenous Australians to converge on Melbourne during the Games, which they have dubbed “the Stolenwealth Games”. But the choice of Kings Domain has made conflict almost inevitable, as the area is one of the areas gazetted by the State Government as a “Games management zone”.

Under the Commonwealth Games Arrangements Act, any area gazetted as a management zone is subject to a range of specific laws – including bans on protesting, creating a disturbance and other activities. The protest bans will be in effect at different times and places, and offenders can be arrested. A spokeswoman for the Black GST, which advocates peaceful protest, said the site had been chosen because it was close to where the Queen will stay on March 15. “We figured that she is only in Melbourne for 27 hours or something like that so we thought we would make it easy for her to come next door and see us,” she said. “We are a very open, welcoming group, so she will be welcome to come and join us.”

Kings Domain is the burial site for 38 indigenous forefathers of Victoria. Black GST elder, Targan, said trade union groups have offered to install infrastructure at the site. The group initially worked with the State Government to find a suitable camp site, but the relationship broke down when the Government failed to meet a deadline imposed by the protesters. “While we are disappointed the ministers were not able to meet deadline on our request, we thank them for their constructive approach towards negotiations and the open-door policy exercised,” said Targan.

A spokesman for Games Minister Justin Madden said the Government was still investigating other sites. Victoria Police Games security commander Brendan Bannan said he was not convinced the Black GST represented the views of most indigenous people. “We are dealing with the Aboriginal community and they don’t seem to support it at all … the wider Aboriginal community don’t support disruption to the Games at all,” he said.

The Government was told that Black GST supporters would camp in Fitzroy Gardens and other city parks should it fail to nominate a site. A spokesman for Aboriginal Affairs Minister Gavan Jennings said the Government was taking the issue seriously, but had not been able to finalise a campsite before the deadline.

Under special Games laws, people protesting or causing a disturbance in “Games management zones” can be arrested and fined. While prominent public spaces such as Federation Square, Birrarung Marr, Albert Park and the Alexandra Gardens fall under the legislation, such tough anti-protest laws cannot be enforced in the nearby Fitzroy Gardens.

Games chairman Ron Walker has urged the group to choose another date for its protest march through the city, which is currently planned to coincide with the opening ceremony on March 15. The group believes that an opportunity to gain attention for indigenous issues was lost at the Sydney Olympics and has vowed to make a highly visible presence at the Games.

The Black GST said the Australian Aboriginal Tent Embassy’s sacred flame, burning over many years at the Canberra site will be carried to Melbourne before the Games, and its arrival would mark the opening of the protest camp from where a march will proceed to the MCG before the Opening Ceremony.

Black GST claims supporters from all over Australia, including three busloads from the West Australian Land Council, will gather in Melbourne during the Games for peaceful protests.

Aboriginal Affairs Minister Gavin Jennings had offered Victoria Park to the protesters. Victoria Park, former home of Collingwood Football Club, where one of the strongest statements of Aboriginal pride, when St Kilda star Nicky Winmar in 1993 raised his jumper and pointed to his bare chest after racial taunts from the Collingwood crowd.

Black GST, which has labelled the Games the Stolenwealth Games, said the State Government had failed to find a suitable venue. Black GST may encourage protesters to camp in prominent parks such as Fitzroy Gardens and Treasury Gardens. Graffiti supporting the action has also appeared in central Melbourne.

Melbourne City councillor Fraser Brindley has offered his home to the Black GST organisers. “I offered my home up to people who are organising visitors to come to the Games,” he said. Cr Brindley will be overseas when the Commonwealth Games are held and has offered the free accommodation at his flat at Parkville. He said he agreed with the protesters’ view that treaties needed to be signed with indigenous Australians. “I’m offering it up to the indigenous people who are coming to remind Her Majesty that her Empire took this land from them,” said Cr Brindlley. Nationals leader Peter Ryan said: “This extremist group has no part in the Australian community.” Melbourne councillor Peter Clarke said the actions were embarrassing and that he would try to discourage him. “It’s not in the spirit of the Games,” he said.

Aboriginal elder, Targan, said the possibility of securing Victoria Park was delightfully ironic. “There’s a lot of irony going on,” Targan, 53, a PhD student at Melbourne University, said. “GST stands for Genocide, Sovereignty and Treaty. We want the genocide of our people to stop; we want some sovereignty over traditional land, certainly how it is used, and we want a treaty with the government,” Targan said.