More than a trillion tons of methane lie trapped in permafrost and under frozen lakes in the Arctic. As the region thaws, the gas—a huge potential source of alternative energy—is bubbling out, simultaneously attracting venture capitalists and worrying climatologists. The U.S. Geological Survey estimates that methane locked in ice (known as hydrates) could contain more organic carbon than all the world’s coal, oil, and nonhydrate natural gas combined. But that isn’t the only reason to keep track of methane release. Because of the way methane absorbs warmth radiating from Earth, it is as much as 21 times more heat-trapping—and thus climate-warming—than carbon dioxide. Yet current models of climate change do not take into consideration the potential impact of methane.
Katey Walter, a researcher at the University of Alaska at Fairbanks, has spent the past few years mapping and measuring hot spots of methane emission in the rapidly melting regions of Alaska and Siberia. In a recent study, Walter and her team predict that if these methane reservoirs melt over the next 100 years, the gas released could re-create climate conditions that prevailed during a 2,500-year warming spell that began 14,000 years ago.
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Walter mapped likely methane deposits across the region; quantified how much methane, formed when permafrost melts, is bubbling out of current lakes; and compared that with the amount emitted from methane-laden sediments taken from ancient frozen lakes.
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She determined that 11,000 years ago methane released from thawing lakes contributed 33 to 87 percent of atmospheric methane. After that, melting slowed for the next 9,000 years and the lakes refroze. But now due to global warming over the past 100 years, methane release in the Arctic seems to be accelerating, Walter says, and left unchecked, it will continue to rise well above the levels found 10,000 years ago.
A 386,000-square-mile tract of permafrost in Siberia contains as much as 55 billion tons of potential methane, Walter says —10 times the amount currently in the atmosphere. Several companies, including BMW, have expressed interest in methane-to-energy technologies for large-scale operations. http://louis-j-sheehan.net/page1.aspx
Walter sees the benefits of using methane as an energy source as twofold: “Not only does it prevent a potent greenhouse gas from entering the atmosphere by converting it to weaker greenhouse gases—water vapor and carbon dioxide—but using it on-site would also reduce the demand for other fossil-fuel sources.”
Vitamin A is essential for the production of testosterone. Could our high fiber low fat diets have anything to do with low testerone levels? http://louis-j-sheehan.info/page1.aspx
High quality cod liver oil is an excellent source of both vitamins A&D, not to mention essential fatty acids EPA and DHA.
My boyhood baseball hero Rich "Goose" Gossage made it into the baseball Hall of Fame last week. His 98-mph fastball and 22-year career as a fearsome relief pitcher were achieved without the use of steroids. His best years were back in the '70s and early '80s when men were men and made their own testosterone naturally. But even the most macho among us face a decline in the quintessential male hormone as we age. Recent evidence points to a decline in testosterone levels in the general population of men, regardless of age.
A 20-year study of testosterone levels in men found that testosterone concentrations dropped about 1.2% per year, or about 17% overall, from 1987 to 2004. The downward trend was seen in both the population and in individuals over time.
What happened to our testosterone? Did the ballplayers siphon it off? Some theorize changes in the environment are responsible for the broad decline. A physician friend who works out regularly told me recently that he could really start to feel the effects of his age after he hit his 40s. The signs: Slower recovery from activity, less tolerance of long hours and less muscle flexibility.
Testosterone levels start to drop for most men in middle age. For those wanting to start their testosterone decline sooner than that, getting married may help.
Married men have lower testosterone levels than single guys. A recent study among the Ariaal people in Kenya showed that unmarried men had higher testosterone levels than men with a single wife. http://louis-j-sheehan.info/
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http://louis1j1sheehan.us/And men with two or more wives had even lower testosterone than those with one.
It's estimated that two million to four million American men have a significant testosterone deficiency and that less than 5% of them are getting treatment. That mirrors what I see in my own practice. Most men who might need treatment don't come in with any regularity. Overall, I'm probably not helping as many men with the problem as I need to.
Low testosterone may lead to loss of body hair, sleep disturbance, sweats, depression, impaired thinking, lower bone mass and strength, fatigue and weak bones. Some signs are more subtle. Decreases in sex drive, energy, motivation, initiative, aggressiveness and self-confidence are other signals. Testosterone levels can be measured with a blood test. It's best to have it done before 10 a..m. because levels fluctuate during the day.
I discovered one of my patients was low on testosterone after he fell during a minor mishap and unexpectedly broke his forearm. He turned out to have osteoporosis due to low testosterone. He developed type 2 diabetes around the same time. Adult onset diabetes in men is also associated with low testosterone.
Carrying extra weight around the middle and a drop in muscle mass were warning signals that became clear after the fact. Low testosterone levels are increasingly prevalent and often under diagnosed by the medical community. It's one of those chronic things that can drag on for years without much beyond vague symptoms that a guy might wonder about but not come in over. Doctors often overlook it because other important and more pressing health problems.
How do you separate what's normal aging from a serious medical problem? And how bad would it have to be before you would bring it up with your doctor? Men, do you find it difficult to discuss "nonpressing" issues with your doctor? What about sex-related disorders like erectile dysfunction and lowered sex drive? Women, do you have a tough time convincing the men in your life to seek medical counsel? Share your views on the board.
Some two in 10 men over the age of 60 are testosterone deficient. Still, many men aren't aware that their testosterone levels are low or that there's a treatment available if they have symptoms from a deficiency.
Most commonly, gels, patches or injections are given to correct the deficiency. http://louis-j-sheehan-esquire.us/
There can be side effects such as acne and oily skin, increases in red blood cells that could be potentially harmful and, in a worse-case scenario, acceleration of prostate cancer growth if an undiagnosed tumor is present.
This is one situation where more of a medication isn't necessarily better and the levels of testosterone need to be monitored along with prostate exams, blood work for PSA testing, liver function testing and blood counts.
Men with erectile dysfunction should have their heart and their testosterone levels checked because there is much more at stake than just their sex life. ED is associated with heart disease, and the smallest arteries responsible for erections are often the first to clog. If you have ED and haven't had your heart checked, you should. If you have ED and your Viagra isn't working, you should have your testosterone levels checked.
Compared with our knowledge of estrogen replacement for menopausal women relatively little is known about the long-term effects of testosterone supplementation in men. There were years when estrogen replacement was commonly prescribed for women with the expectation that it was beneficial for all sorts of ills. When large clinical trials were done we found out that risks for breast cancer and heart problems were higher for women taking hormones and that some benefits were overstated.
One thing is certain: Testosterone is not a magic medicine that will halt aging.
Steroids should stay banned from baseball, but in medicine they have their place. Despite all the testosterone in the world I'm never going to get a hit off the Goose. Even if he is 56.
Tampa, Fla.
They're bullish on testosterone here at the 6th Annual World Congress on the Aging Male. http://louis-j-sheehan.org/
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Physicians and researchers from around the world gathered to review the latest findings on what low levels of the male hormone means for men, how replacing it might help and why it hasn't caught on broadly.
"If we had a drug that could restore sexual function in men, make them stronger, build their bones, reduce fat and get rid of the blues, you'd say, 'Oh my God, why doesn't everybody know about it?' " says Abraham Morgentaler, a urologist at Harvard Medical School and director of the Men's Health Boston clinic. http://louis1j1sheehan1esquire.us/
"There is a drug like that -- but the public associates testosterone with cheating and illicit behavior and the fact that 40 years ago, it was thought to give people prostate cancer."
Whether it does or not is still an open question. But many studies have shown that low testosterone is associated with reduced muscle mass, bone density, sexual function and vitality, and increased fatigue, depression, Type II diabetes and obesity -- particularly belly fat. Evidence is accumulating that restoring testosterone to normal can alleviate many of those problems.
"Men with low testosterone are miserable to live with -- they fall asleep after dinner and snap at everyone," says David Greenberg, a general practitioner in Toronto. "You restore it and they say, 'Wow, I feel like myself again.' "
But there's debate over which of the three forms of testosterone to measure, what level constitutes "low" and, most importantly, at what age. Testosterone declines naturally after age 40. So is a 70-year-old man deficient or just aging?
"The moment you add the element of aging, you add the element of ageism. It's giving things for sex to old men," says John E. Morley, director of geriatric medicine at Saint Louis University, who, like other experts quoted here has worked with makers of testosterone products.
"Everybody agrees that testosterone deficiency should be treated in younger men. http://louis-j-sheehan.org/page1.aspx
Why not treat it in older age groups?" says Ronald S. Swerdloff, chief of the endocrinology at Harbor-UCLA Medical Center.
Women lose estrogen much more abruptly in menopause, and replacing it to alleviate symptoms and maintain bone health has been standard practice for decades, though questions remain about the risk of breast cancer.
There are even more unknowns about the risks and benefits of testosterone replacement. For one thing, many of the symptoms of low testosterone are very common in older men and could be related to other conditions. Some, like obesity, may lead to low testosterone rather than vice versa.
And there is lingering concern that testosterone could fuel prostate cancer -- largely because drugs that reduce testosterone seem to shrink enlarged prostates and lower the risk of developing prostate cancer by 25%, according to the National Cancer Institute's Prostate Cancer Prevention Trial.
On the other hand, an analysis of 18 studies in the Journal of the National Cancer Institute last month concluded that there is no correlation between testosterone levels and prostate-cancer risk. Another study in the Journal of Clinical Endocrinology and Metabolism found that men with low testosterone had higher mortality rates in general than those with higher levels, regardless of other risk factors.
Some drug makers are testing oral variations of testosterone that would deliver the benefits without the potential prostate hazards. For now, testosterone is available mainly in injections, topical gels and patches. http://louis-j-sheehan.com/
Nearly three million prescriptions were written in the U.S. in 2007, according to IMS Health, a health-information company.
Everyone here agrees that large-scale clinical trials are needed to evaluate the safety and effectiveness of testosterone therapy. One such trial has been proposed to the National Institutes of Health; and the New England Research Institutes is starting a registry of 1,000 patients, half in the U.S. and half in Europe, to follow for two years.
In the meantime, some doctors are wary of treating older men until more is known. http://louis-j-sheehan.com/page1.aspx
"If your patient is an old man who's grumpy and not the stud he used to be, you could give him testosterone for a few months and see what happens," says Elizabeth Barrett-Connor, chief of epidemiology at University of California, San Diego. "But no epidemiological results justify giving it to older men in general."
The Jerusalem Post is an Israeli daily English language broadsheet newspaper, founded on December 1, 1932, by Gershon Agron as The Palestine Post. While the daily readership numbers (tens of thousands) do not approach those of the major Hebrew newspapers, the Jerusalem Post has a much broader reach than these other newspapers in that their readership is composed of Israeli politicians, foreign journalists, tourists, and also distributed worldwide. Whilst it was once regarded as left-wing, the paper underwent a noticeable shift to the right in the late 1980s. Under new ownership and editorial leadership of editor-in-chief David Horovitz since 2004, the paper's political identity has moved again to a more complex centrist position. http://louis-j-sheehan.biz/page1.aspx
Examples of this shift include support for the August 2005 disengagement from the Gaza Strip and the paper's advocacy for privatization of Israeli religious institutions.
The Palestine Post was founded on December 1, 1932 by American journalist-turned-newspaper-editor, Gershon Agron in the British Mandate of Palestine. During its time as The Palestine Post, the publication supported the struggle for a Jewish homeland in Palestine and openly opposed British policy restricting Jewish immigration during the Mandate period.
On the evening of February 1, 1948, a car exploded outside the Jerusalem building housing the Palestine Post. The building also contained other newspaper offices, the British press censor, the Jewish settlement police, and a Hagana post with a cache of weapons. http://louis-j-sheehan.biz
The bomb destroyed the Hagana post, a large part of the Palestine Post offices, and badly damaged several nearby buildings. One typesetter died and about 20 people were injured. The morning edition of the Palestine Post appeared in reduced format. http://louis-j-sheehan.biz/
The bombing was the work of Fawzi el-Kuttub, under the command of Arab leader Abd al-Qadir al-Husayni. Al-Husayni claimed responsibility for the bombing, but Hagana leaders did not believe that the Arab forces were capable of such operations and suspected various other parties, including Etzel, British forces, and "German saboteurs".
The newspaper's name was changed in 1950, two years after the state of Israel was declared and the Mandate of Palestine ended.
Until 1989 the Jerusalem Post supported the forerunners of the Labour Party and had a liberal or left of center political orientation. In 1989 it was purchased by Hollinger Inc. Under the control of Canadian conservative newspaper magnate Conrad Black the paper became supportive of the Likud. http://louis-j-sheehan.us/Blog/blog.aspx
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A number of journalists resigned from the Post after Black's takeover and founded the left-wing weekly Jerusalem Report, which eventually was sold to the Post. On November 16, 2004, Hollinger sold the paper to Mirkaei Tikshoret Ltd., a Tel Aviv-based publisher of Israeli newspapers. CanWest Global Communications, Canada's biggest media concern, had announced an agreement to take a 50 percent stake in the Jerusalem Post after Mirkaei bought the property, but the Mirkaei pulled out of the deal. CanWest sued in court, but lost.
Currently the newspaper is viewed as having a moderate conservative slant on news coverage, although left-wing columns are often featured on the editorial pages. It espouses economic positions close to those of neoliberalism: tight fiscal control on public spending, curbing of welfare, cutting taxes, and anti-union monopoly legislation, among others. The paper competes with the liberal Haaretz newspaper, which began publishing an English language edition in the 1990s as an insert to the International Herald Tribune.
As with other Israeli newspapers, the Jerusalem Post is published from Sunday to Friday, with no edition appearing on Saturday (the Jewish Sabbath) and Jewish religious holidays. http://louis-j-sheehan.de/
The current head editor is David Horovitz (formerly editor of the Jerusalem Report) who took over for current Wall Street Journal editorial board member Bret Stephens in 2004.
In print, the Jerusalem Post also publishes other editions geared for the local and foreign markets: a Christian Edition, French, 'International', as well as several kids and youth magazines. There is also a section titled "Iranian Threat". In 2007, it also started publishing a Hebrew-only business daily called The Business Post. The newspaper also maintains an online edition named jpost.com.
I wish I could draw. Instead of writing 1,000 words I would sketch a cartoon of Ehud Olmert and Mahmoud Abbas all dressed up for a wedding with nowhere to go. Not a pretty picture, I admit. But this was the image that sprang to mind as the two very odd friends argued about Jerusalem - not about its status, but about when to discuss it.
They reminded me of a couple so in love with the idea of getting married that they refuse to talk about any of the serious issues - like where to live or how to raise their children - for fear that their different ideas would trip them up on the way to the wedding canopy.
Such a marriage, if it takes place at all, is clearly doomed. Olmert and Abbas also know their chances of a happy union are slim. They might march off to "Here comes the Bride," arguably Richard Wagner's best-known piece, but Wagner's Tristan and Isolde, with its convoluted plot full of fateful decisions and deceit, might be more suitable. In fact, Olmert and Abbas might not so much march off into the sunset ceremony as waddle, in the view of some. Speaking at last week's Jerusalem Conference, Opposition leader Binyamin Netanyahu warned: "The prime minister said that we are not talking about Jerusalem, and that we are leaving it until last. But I say, if it looks like a duck, and it walks like a duck, then they plan to divide Jerusalem." Perhaps I should alter my mental cartoon to include the image of lame ducks. http://louis2j2sheehan.us/Blog/Blogger.aspx
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http://louis2j2sheehan.us/page1.aspx Or sitting ducks. At least I should add some ruffled feathers.
Tuesday, February 26, 2008
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