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Title: Warning on rising Med Sea levels
Source: BBC
URL Source: http://news.bbc.co.uk/2/hi/science/nature/7197379.stm
Published: Jan 19, 2008
Author: BBC
Post Date: 2008-01-19 00:25:26 by robin
Keywords: None
Views: 4099
Comments: 130

Warning on rising Med Sea levels

Generic boat on Mediterranean Sea

Scientists noted sea temperatures had also risen significantly

The level of the Mediterranean Sea is rising rapidly and could increase by up to half a metre in the next 50 years, scientists in Spain have warned.

A study by the Spanish Oceanographic Institute says levels have been rising since the 1970s with the rate of increase growing in recent years.

It says even a small rise could have serious consequences in coastal areas.

The study noted that the findings were consistent with other investigations into the effects of climate change.

The study, entitled Climate Change in the Spanish Mediterranean, said the sea had risen "between 2.5mm and 10mm (0.1 and 0.4in) per year since the 1990s".

If the trend continued it would have "very serious consequences" in low-lying coastal areas even in the case of a small rise, and "catastrophic consequences" if a half-metre increase occurred, the study warned.

Global climate change

Scientists noted that sea temperatures had also risen significantly by 0.12 to 0.5C since the 1970s.

Sea level rise is a key effect of global climate change. There are two major contributory effects: the melting of ice, and expansion of sea water as the oceans warm.

Last month, a study by the Intergovernmental Panel on Climate Change said the world's sea levels could rise twice as much this century as UN climate scientists had previously predicted.

The Nobel Prize-winning IPCC predicted a maximum sea level rise of 81cm (32in) this century.

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#1. To: All, *Global Climate Change* (#0)

robin  posted on  2008-01-19   0:26:24 ET  Reply   Untrace   Trace   Private Reply  


#3. To: robin (#1)

Every year billions of tons of earth get washed into the sea, raising sea levels. In 100 million years, mountains become plains. Most people, except for the scientific, believe short term trends will continue.

Global temperature changes for number of reasons and none are man made. One is because the sun has a variable output another is due to the wobble of the earth. The current warm period will reverse in about 20 years and we will start a cooling trend that will make most humans wish it was warmer.

When certain astronomical events occur all at once, there will be another ice age and with our present technology man will be unable to prevent it. If an ice age occurs with man's present level of technology, billions of people will die. Well, they will die anyway; but the the death rate will exceed the birth rate to such an extent that the population of the earth will be billions less. We are advancing toward a Type I civilization. Such a civilization should be able to prevent an ice age.

DWornock  posted on  2008-01-19   1:57:49 ET  Reply   Untrace   Trace   Private Reply  


#4. To: DWornock (#3)

Global temperature changes for number of reasons and none are man made.

Most scientists agree that global warming is at least in part man made; and most of those who disagree are paid by Exxon.

We all need to keep an open mind. Most scientists are apolitical, but not all of them. I'm sure you can find politics involved on both sides, in an attempt to control us and lead us astray. Certainly Big Oil has obvious reasons for wanting to confuse the facts on this issue.

www.motherjones.com/news/.../05/some_like_it_hot.html
News: Forty public policy groups have this in common: They seek to undermine the scientific consensus that humans are causing the earth to overheat. And they all get money from ExxonMobil.

Cold comfort in British Antarctic deep ice core results

Fred Bortz's picture
Submitted by Fred Bortz on Tue, 2006-09-05 08:52.

A BBC News story reports findings from the British Antarctic Survey (BAS) that the rate of increase of atmospheric greenhouse gases in Earth's atmosphere is unprecedented, at least over the past 800,000 years.

Studying a deep ice core sample, the scientists have not only been able to measure the greenhouse gas concentrations in ancient atmospheres but also the average temperatures. The result, according to the BBC report, is that carbon dioxide concentration and temperature rise and fall in lockstep.

The report quotes BAS scientist Dr. Eric Wolff, who saw no signs that geological or biological systems have served as CO2 sinks to mitigate the increases.

Wolff told the BBC that the fastest observed increase in CO2 was about 30 parts per million (ppm) in 1000 years, in contrast to present circumstances in which "the last 30 ppm of increase has occurred in just 17 years. We really are in the situation where we don't have any analogue in our records."

robin  posted on  2008-01-19   12:24:39 ET  (1 image) Reply   Untrace   Trace   Private Reply  


#12. To: robin, DWornock, Andre (#4)

Studying a deep ice core sample, the scientists have not only been able to measure the greenhouse gas concentrations in ancient atmospheres but also the average temperatures.

Ice cores are not good proxies for past climate and atmosphere concentrations. I have a friend who is writing a paper for publication on this right now in relation to the Younger Dryas.

farmfriend  posted on  2008-01-19   18:58:31 ET  Reply   Untrace   Trace   Private Reply  


#15. To: farmfriend, wudidiz (#12)

I have a friend who is writing a paper for publication on this right now in relation to the Younger Dryas.

You appear to have a lot of "friends" that attempt to say there is no such thing as global warming. Why are these people your friends?

Don't you care if the earth becomes uninhabitable, with all of our children and grandchildren suffering horrible deaths in the not too distant future, if global warming turns out to be true? Why are you so willing to gamble with the earth's future, and why do you support those that wish to continue to pollute the planet, regardless of global warming?

FormerLurker  posted on  2008-01-19   19:03:58 ET  Reply   Untrace   Trace   Private Reply  


#16. To: FormerLurker, wudidiz, robin, buckeye, DWornock, *Agriculture-Environment* (#15)

Here is a quote from another one of my friends on AGW:

There are several climate forcing solar cycles at play. The "Maunder" cycle, which brought the Medieval Warm period 300-year Little ice Age 1400-1700 is a 1 000 year cycle, and the next LIA is due in 2400- 2700. We are now at the end of a 210 year Vries cycle and a 60 year Gleissberg cycle. In a few years, temperatures will plunge and the Londonders can look forward to ice markets on the Thames for the first time since 1814. The ensuing global famine is less amusing. The warmest years in Uppsala, Sweden were 1789, 1930 and 1999, all 7,7 degrees Celsius. In 1801 it was 6,0 and in 1805 3,7. In the famine year of of 1868, it was 2,5. This kind of sudden drop is typical of a Vries cycle, and today it is once more imminent. AGW and environmentalism will have its place in history alongside the witch processes.

Magnus Hagelstam, Finland

farmfriend  posted on  2008-01-19   19:10:55 ET  Reply   Untrace   Trace   Private Reply  


#20. To: farmfriend (#16)

BTW, you never explained what you mean by "AGW"..

FormerLurker  posted on  2008-01-19   19:15:43 ET  Reply   Untrace   Trace   Private Reply  


#33. To: FormerLurker (#20)

BTW, you never explained what you mean by "AGW"..

AGW = Anthropogenic Global Warming

And yes I have explained it.

farmfriend  posted on  2008-01-19   19:27:17 ET  Reply   Untrace   Trace   Private Reply  


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