Comments about ‘The big thaw: Greenland ice cover is melting away’

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Published: Thursday, July 26 2012 10:53 a.m. MDT

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VST
Bountiful, UT

The referenced article (in this article) also indicated that "...ice cores from the Summit on Greenland show that melting events of this type occur once every 150 years on average. With the last one happening in 1889, this event is right on time."

Bottom line: This event is not unprecedented. Some may falsely attempt to conclude that this latest event is directly caused by anthropometric global warming.

atl134
Salt Lake City, UT

@VST
"Some may falsely attempt to conclude that this latest event is directly caused by anthropometric global warming."

Yeah... I'm just going to ignore that some of the stations there recorded their highest values on record. I'm sure the general significance of recent Arctic warming had nothing to do with temperatures managing to get above 0C in those parts for a few days...

Sure natural cycles are at play, they always are, but that doesn't mean there can't be human-caused influences in addition to it.

VST
Bountiful, UT

@atl134,

Are you positively claiming that "human-caused influences" added to it? If so, where if you scientific evidence?

Here is the bottom line regarding the hypothesis of man-caused global warming (AGW):

First of all, there is no question that the overall average global temperatures are slowly increasing. That is a fact - it is scientifically measurable.

Secondly, even though it is a trace atmospheric gas, there is no question that there has been a consistent increase in the amount of CO2 concentrations (measured in parts per million) in the earth's atmosphere. That is also a fact and is scientifically measurable.

But all this bantering fails to focus in on the important crux of the AGW hypothesis (increased CO2 concentrations being the cause).

There is a BIG debate among climate scientists today regarding "HOW SENSITIVE is the earth's atmosphere to increased CO2 forcings?" Compounding the answer to this question, there are also many other atmospheric forcings that can cause increases in average global temperatures. But it is difficult to isolate and measure the overall sensitivity of each forcing along with their respective interrelationships.

Validation of the AGW hypothesis by climate scientists is still in-work.

Rifleman
Salt Lake City, Utah

Re: atl134 Salt Lake City, UT

Those that believe in Global Warming should do their part in reducing it by turning off their electricity and buying some carbon credits.

metamoracoug
metamora, IL

VST: Thank you for a thoughtful handling of this topic.

I don't have a problem with "global warming" or "climate change" (when has the climate ever been static?). I live in central Illinois. 10000 years ago, where my house now stands, was a layer of ice that was 100s of feet thick. Overall, since that time, the temperatures have warmed considerably. Man's influence in the warming -- if it has had any affect at all -- has been only within the past 200 years.

Now some claim that the process is speeding up. Maybe so. but as VST has pointed out, it is nearly impossible to demonstrate -- if it is accelerating -- what affect man-made pollutants are having.

Finally, I believe we all have a responsibility to use our resources wisely. I don't need a government agency to tell me what I can do to reduce greenhouse gases because I'm already doing much: recycling; riding my bike instead of driving; drying my clothes outside instead of in the dryer; insulating; growing some of the food I eat instead of trucking it in from California.

worf
Mcallen, TX

Yikes! Global warming?

Since ice is already expanded, its melting will only lower the ocean levels. Try putting an ice cube in a glass and fill it to the rim with water. When melted, the water level goes down.

To be safe, I'll give my lawn mower a tune up.

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