Print 77 comment(s) - last by WLee40.. on Oct 9 at 1:08 PM

Emissions up until this point have ensured an irreversible sea-level rise of 1.1 meters by the year 3000

A new study has found that it's too late to reverse the effects that greenhouse gas emissions will have on sea levels over the next thousand years -- but we could lessen the impact of these effects if proper changes are made. 

According to research by scientists at Vrije Universiteit Brussel, Manchester Metropolitan University and the Université catholique de Louvain, greenhouse gas emissions produced up to this point has ensured an irreversible sea-level rise of 1.1 meters by the year 3000. This number could increase, they warn, if no action is taken to reduce these levels -- and the effects could extend into thousands of years into the future.  

The research team came to this conclusion by modeling sea-level changes over thousands of years while including all of our planet's ice sheets and warming of the oceans into its projections. This includes glaciers, ice caps and the Greenland and Antarctic ice sheets. The team said this has never been done before. 

Using a climate modeling system called LOVECLIM, the team analyzed several scenarios over the next thousand years. It found that there will be a sea-level rise of at least 1.1 meters by the year 3000, but if other certain emissions scenarios were followed, it could increase to 2.1, 4.1 or even 6.8 meters. 

The study also found that the Greenland ice sheet was the cause of over half of the sea-level rises while thermal expansion of the ocean came in second place and glaciers/ice came in third. 

"Ice sheets are very slow components in the climate system; they respond on time scales of thousands of years," said Professor Philippe Huybrechts, co-author of the study. "Together with the long lifetime of greenhouse gases in the atmosphere, this inertia is the real poison on the climate system; anything we do now that changes the forcing in the climate system will necessarily have long consequences for the ice sheets and sea level.

"Ultimately, the current polar ice sheets store about 65 metres of equivalent sea level and if climatic warming will be severe and long-lasting, all ice will eventually melt. Mankind should limit the concentration of greenhouse gases at the lowest possible level as soon as possible. The only realistic option is a drastic reduction of the emissions. The lower the ultimate warming will be, the less severe the ultimate consequences will be." 

This study was published in Environmental Research Letters

Source: Science Daily

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RE: This is good news
By Paj on 10/3/2012 8:19:08 AM , Rating: -1
Or, you know, you could just take things out of context or cherry-pick parts of the article.

Q. Is there any question that surface temperatures in the United States have been rising rapidly during the last 50 years?

No. Even if NOAA did not have weather observing stations across the United States, the impacts of the warming are clear and present. For example, lake and river ice is melting earlier in the spring and forming later in the fall. Plants are blooming earlier in the spring. Mountain glaciers are melting. Coastal temperatures are rising. A multitude of species of birds, fish, mammals and plants are extending their ranges northward and, in mountainous areas, uphill toward cooler areas.

You conservatives need to stop bringing up the canard of the leaked emails. Multiple inquiries have exonerated all those involved several times over.

But I guess that just shows how deep the conspiracy is huh? Everyone is in on it except you guys!

RE: This is good news
By mcnabney on 10/3/12, Rating: -1
RE: This is good news
By Cluebat on 10/3/2012 10:12:52 AM , Rating: 2

RE: This is good news
By tamalero on 10/3/2012 10:23:28 AM , Rating: 3
Doesnt it work BOTH WAYS?

RE: This is good news
By FITCamaro on 10/3/2012 9:45:14 AM , Rating: 4
So I guess the massive droughts in the early 20th century were also caused by man made global warming despite that we were barely producing any emissions by comparison to today back then.

Liberals seem to have a blind eye to history.

RE: This is good news
By FaaR on 10/3/2012 12:18:40 PM , Rating: 1
Spoken like a true ignoramus on the subject.

Of course both droughts and blizzards too would continue to exist both with and without human-induced climate change. Drought = weather. This is about climate. Apples and oranges, see?

RE: This is good news
By superflex on 10/3/2012 1:31:49 PM , Rating: 2
Ah yes, name calling. Typical tool of the progressive.
You consider 150 years of weather station data but ignore the 400,000 years of climate data from the Vostock ice cores.
Milankovitch cycle anyone?

RE: This is good news
By FITCamaro on 10/3/2012 2:00:51 PM , Rating: 2
Yes and climates have cycles.

RE: This is good news
By WLee40 on 10/3/2012 1:13:27 PM , Rating: 2
Look, this is my take simplified:
We are just getting out of the last ice age and the temperatures are naturally rising. There is no question that avg. temps are rising. This will likely cause greater fluctuations and increased anomalies and weather pattern changes. The amount of human influence is unknown and likely a small percentage-wise influence. Again, this is UNKNOWN. We don't understand all the complexities of our climate to make an accurate assessment. Nonlinear and chaotic equations that make up weather patterns need a high degree of accuracy and detail in the initial conditions and measurements that we simply don't have yet. I doubt we will know how much human influence has changed or will be able to change the climate until several more decades have passed. In the meantime, it makes sense to try and reduce, reuse and recycle as much as possible, but not go into debt or hurt the economy doing it.

RE: This is good news
By FITCamaro on 10/3/2012 3:47:08 PM , Rating: 4
In the meantime, it makes sense to try and reduce, reuse and recycle as much as possible, but not go into debt or hurt the economy doing it.

I agree with this statement absolutely. Is recycling good? Absolutely. Is trying to save energy good? Absolutely. Is trying to use less gas good? Sure.

But if I want a sports car, I should be able to buy one because that's the way a free market economy works. And these days we're building things like appliances that may use less whatever but are less effective at what they're designed to do. Namely toilets and washing machines.

Then you have all this "no lead" crap going on as if people are just sucking on their electronics. What is the result? Things break more. Resulting in even more waste from people largely throwing these things away and then having to go out and buy a new one.

RE: This is good news
By macca007 on 10/4/2012 4:44:22 AM , Rating: 2
Thank you,You hit it on the head!
Man I am so annoyed about these so called eco friendly whitegoods. Half flush toilets what a fkn joke,Yes I know that side is for taking a leak but usually they have smaller hole in the toilet bowl as well, So when you take a dump you have to flush 2 or 3 times which cancels out the saving on having the half flush in first place. Secondly front loading washing machines are CRAP, My next one will be a back to a top loader again, Front loader gets crap stuck in window which stinks out your washing if you forget to clean it and secondly I can't fit as many clothes in there so I have to do another load once again cancelling out the water savings from having front loader. Same can be said of many things we have now, Designed obsolescence? Or made so cheap they break after a several uses, Who cares they say as it's so cheap you just go buy another one.

RE: This is good news
By WLee40 on 10/9/2012 1:08:42 PM , Rating: 2
Agreed. I have a sports car and don't want to see performance or choice go away. I doubt it will though, look at that sweet Tesla S car! Although, we may need to make sure Obama doesn't get a 2nd term...

"The whole principle [of censorship] is wrong. It's like demanding that grown men live on skim milk because the baby can't have steak." -- Robert Heinlein

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