Arctic ozone layer is thinning, scientists report

[lovuian]

http://feeds.bignewsnetwork.com/redir.php?jid=fa6e66d1a72eae61&cat=c08dd24cec417021

North Europe faces radiation danger if cold conditions continue

Thomas Seiler / Alfred Wegener Institute for Polar and Marine Research
Researchers in Spitzbergen, Norway, prepare to launch a balloon that's hooked up to an ozonesonde, a device that measures ozone layer conditions. The low light created the blurred image of the balloon.
MSNBC
Updated: 1:31 p.m. ET Jan. 31, 2005The ozone layer over the Arctic has thinned due to colder-than-normal temperatures, and "large scale losses" are likely if the cold conditions continue, a European research group reported.



The research prompted the European Commission on Monday to issue a statement warning that “should further cooling of the Arctic stratosphere occur, increasing ozone losses can be expected for the next couple of decades.”

more...

There is some great pictures in the article I wish I knew how to put the pictures up to show you guys
Its very distressing!!!

[HysteryDiagnosis]

1. All the more reason to learn that these threats to a very large degree

are addressable...

http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=104&topic_id=3036590&mesg_id=3036695

http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=104&topic_id=3036590&mesg_id=3036683

[Lorien]

8. But even our own won't address them

it's just us few on this board that reply to these threads. A Michael Jackson thread will get a hundred responses, but the environment? The GOP brainwashed the entire population into believing that it won't effect them.

[lovuian]

9. Believe me there are tons of people who worry about Environment

issues. Its a hot topic out there. When we get hit with more Hurricanes or when canada Norway and Europe start putting the pressure on

It will get more attention!!!

[Lorien]

13. I got hit with three hurricanes last year

and a forth narrowly missed my city-a city 50 miles inland that hasn't been hit by more than ONE hurricane in 61 years!

I have a good friend who has been studying global climate change in Antarctica now for 45 years (he's my best friend's dad). What he told me 20 years ago convinced me never to have children. Now his predictions are coming true-far ahead of schedule, but still, no one in power will listen.

I expect a short life.

[hatrack]

12. I hear you, Lorien

Believe me, I hear you. :hi:

[The Sheik]

2. Uh oh.

Rapture's comin.

[PartyPooper]

3. No problem. Just tell all of those northern folks to move to America!

We still have plenty of that ozone here! There's probably enough to last us for the next 20 years or so.

:D

:hi:

[VegasWolf]

4. Bush's solution: Run a big pipe from LA to the artic circle. n/t

[SpiralHawk]

5. This is another fine mess you've gotten us into, mr. Chimpee

I am holding you RESPONSIBLE mr. Bush. Please stop ignoring reality. Snap out of it. You know what i mean?

"We can easily forgive a child who is afraid of the dark. The real tragedy of life is when men (and women) are afraid of the light." - Plato

[NMDemDist2]

6. re: posting pics

right click on the picture, go to "properties"  if
it give you two chose "image properties" highlight
the url of the pic "Http:.......gif or .jpg" hit 
ctrl "C" (copy) then come to your post window and
hit ctrl "V" to paste

preview your post and the pic should show up :)

re: the article, nice to see MSNBC running SOMETHING on global
weather

[lovuian]

7. Thanks Here it goes

Ok lets see if I did it!!! Whoo Hoo I did it Mega Thanks!!!

Mother of pearl clouds are seen above Norway at sunrise on Jan. 5. The clouds consist of ice particles and typically form when conditions cause local cold spots in the stratosphere

[PartyPooper]

10. That is such a beautiful picture. Thanks for posting it!

:D

:hi:

[lebkuchen]

11. I've already had basal cell three times

fortunately it wasn't anything worse than that, but anyone who isn't constantly vigilant about checking their skin nowadays is being foolish.

We'll all be wearing UV protective clothing in the next decade.

[HysteryDiagnosis]

15. Check it....

1: J Dermatol. 2000 Nov;27(11):691-5. Related Articles, Links

Novel approaches to chemoprevention of skin cancer.

Bickers DR, Athar M.

Department of Dermatology, Columbia Medical Center, 161 Fort Washington Avenue, New York, NY 10032, USA.

Protection against sun-induced damage leading to photocarcinogenesis in skin is a highly desirable goal. Among various strategies, chemopreventive approaches utilizing non-toxic agents to prevent the occurrence of precancerous lesions or their surrogate markers are potentially attractive. Epidemiological and experimental studies provide evidence that some naturally occurring chemical agents in the human diet can diminish cancer risk. Aside from water, tea is the most common beverage consumed worldwide. Black tea accounts for nearly 80% of total tea production. Black tea and green tea are derived from the same plant, Camelia sinensis. Green tea contains monomeric polyphenols known as flavanols and black tea contains dimeric flavanols and polymeric polyphenols known as theaflavins (TFs) and thearubigins (TRs). Over the past fifteen years our laboratory has been exploring the feasibility of using tea and its constitutents as an approach to skin cancer prevention. We demonstrated that green tea, black tea and constituent polyphenols protect against chemical- and ultraviolet B (UVB)-induced carcinogenesis and reduce the growth of established tumors in skin. We have also shown the efficacy of green and black tea extracts against UVB and psoralen + ultraviolet A (PUVA)-induced early damage in skin. Although PUVA is highly effective in treating certain skin diseases, careful follow-up studies of cohorts of patients have shown that similar to UVB, PUVA treatment increases the risk for cutaneous squamous cell carcinoma and melanoma. We have found that oral administration of a standardized green tea extract (SGTE) prior to and during treatment of SKH-1 mice diminished PUVA-induced skin hyperplasia and hyperkeratosis. SGTE-treatment also inhibited PUVA-induced accumulation of c-fos and p53 proteins and epithelial hyperproliferation. Both topical application and oral administration of SGTE after PUVA-treatment reduced skin inflammation and cell hyperproliferation. Topical application of SGTE to human skin prior to PUVA-treatment inhibited the delayed skin inflammatory response. Similarly, oral and topical administration of standardized black tea extract (SBTE) and its two major polyphenolic sub-fractions protect against UVB-induced erythema in SKH-1 mice. Furthermore, topical application of tea extracts to human volunteers protects against UVB-induced erythema. In summary, these studies indicate that tea extracts are effective in reducing UVB- and PUVA-mediated DNA damage, expression of early response genes and early inflammatory changes in skin. These studies verify a conceptual rationale for employing naturally occurring dietary constitutents as an approach to cancer chemoprevention.

Publication Types:

* Review
* Review, Tutorial


PMID: 11138532

1: Recent Results Cancer Res. 2003;163:151-64; discussion 264-6. Related Articles, Links

Skin cancer chemoprevention: strategies to save our skin.

Einspahr JG, Bowden GT, Alberts DS.

Arizona Cancer Center, University of Arizona, P.O. Box 245024, Tucson, AZ 85724, USA.

There are over 1 million cases of skin cancer diagnosed yearly in the United States. The majority of these are nonmelanoma (NMSCs) and are associated with chronic exposure to ultraviolet light (UV). Actinic keratosis (AK) has been identified as a precursor for SCC, but not for BCC. AKs are far more common than SCC, making them excellent targets for chemoprevention. Cancer chemoprevention can prevent or delay the occurrence of cancer in high-risk populations using dietary or chemical interventions. We have developed strategies that have rational mechanisms of action and demonstrate activity in preclinical models of skin cancer. Promising agents proceed to phase I-III trials in subjects at high risk of skin cancer. UV light induces molecular signaling pathways and results in specific genetic alterations (i.e., mutation of p53) that are likely critical to skin cancer development. UVB-induced changes serve as a basis for the development of novel agents. Targets include inhibition of polyamine or prostaglandin synthesis, specific retinoid receptors, and components of the Ras and MAP kinase signaling pathways. Agents under study include: epigallocatechin gallate (EGCG), a green tea catechin with antioxidant and sunscreen activity, as well as UVB signal transduction blocking activity; perillyl alcohol, a monoterpene derived from citrus peel that inhibits Ras farnesylation; difluoromethylornithine (DFMO), an inhibitor of ornithine decarboxylase and polyamines; retinoids that target retinoid X receptors and AP-1 activity; and nonsteroidal anti-inflammatory agents that inhibit cylooxygenase and prostaglandin synthesis. We performed a series of Phase I-II trials in subjects with multiple AK. For example, a phase II randomized trial of topical DFMO reduced AK number, suppressed polyamines, and reduced p53 protein. Our goal is to develop agents for use in combination and/or incorporation into sunscreens to improve chemoprevention efficacy and reduce skin cancer incidence.

Publication Types:

* Review
* Review, Tutorial


PMID: 12903851

[PennyLane]

14. Blame the HAARP project.

[tom_paine]

16. Hoave you noticed how Imperial Amerika is falling behind in the sciences

If this Imperial exepriment in 'Lamarckism' continues over evolution, we will have at least a generation of ignorance in the biological fields.

We will continue to fall behind, but we should be ok as long as their is an upper generation of scientists who were schooled in Free America, but when the first Imperial Generation assumes charge, like in so many other fields, things will deteriorate quickly.