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Greenland


Ice melt in Greenland exposes different ways media treats the story (Update)

According to the Atlantic’s Rebecca Rosen, Greenland is in the middle of an “extreme ice melt”.  You can read the article and consider the point.  I’ll give her credit.  She reports it pretty objectively including this as a reason for the melt:

NASA says that it is normal for Greenland’s ice to melt a bit in the summer; what is abnormal is the extent. Normally, only about half of the ice sheet’s surface sees any melting. This year, that proportion just about doubled. NASA additionally said that its satellites were recording uncharacteristically high temperatures over the island. Those warmer temperatures were brought by a bubble of warm air (a "heat dome"), the latest in a series of such ridges that have moved over Greenland this year.

In other words, a regional event.

She also mentions:

The last such melt event occurred in 1889, according to data from ice cores, and scientists say they would expect such an event about every 150 years. They’ll be monitoring the ice closely in the years ahead to see if this turns out to be a regular aberration, or an irregular one.

Got it.  Thanks for noting the event which appears to have a history (I’ll cover how much of a history below).

The UK’s Guardian kicks it up a notch with the use of the word “unprecedented” in their title.

“Greenland ice sheet melted at unprecedented rate during July”

No.  It didn’t. As we see from the Atlantic’s treatment,  this event isn’t at all “unprecedented.”  In fact, if I have any gripe about the Atlantic’s coverage is it stopped short of noting a longer history of Greenland’s ice melts:

greenland

 

Greenland, as you can see, has seen periods as warm or warmer than now in its history. One could logically assume then that it would have had the same sorts of weather events during those periods as it experienced during the recent week in early July. 

BTW, here’s an explanation of the numbers you see above:

greenland temp history

“Unprecedented” is obviously a incorrect characterization of the event.  Why did the Guardian seize on the word?
Because some scientist conveniently used it:

However, scientists were still coming to grips with the shocking images on Tuesday. "I think it’s fair to say that this is unprecedented," Jay Zwally, a glaciologist at Nasa’s Goddard Space Flight Center, told the Guardian.

Again, no, it isn’t “unprecedented”.  And obviously the Guardian didn’t take the time to find out if it really was.  A simple Wikipedia check would have produced the above graph.

So why the acceptance of the scientist’s characterization without checking?  I think that too is obvious – it’s scarier than admitting it has a long history of occurring,  many times prior to the industrial revolution.  It lends more immediacy to the story.   The fact that throughout its history Greenland has seen a cycle of warmer and colder weather is “inconvenient” to the scare factor related to AGW.  Certainly the Guardian is careful not to come right out and scream global warming, but by noting this “unprecedented” event, it certainly is clear that global warming, and specifically AGW,  is the dot to which they want you to connect this to.

The NY Times, on the other hand, notes the melt and takes a different approach.  While noting the melt and the high pressure ridge, the Times throws this into the mix:

Nonetheless, the scientists said, the melt was significant because Greenland’s ice sheet is unequivocally shrinking as a result of the warming of the world’s oceans, and the event could help broaden their insights into climate change and earth systems.

While they don’t claim that AGW is the cause for warming oceans (don’t worry, there are plenty of others out there that do), they don’t endeavor to explain why oceans have been warming for the past 100 years.

Here’s a pretty significant clue.  It’s a 2,300 year Hallstatt solar variation cycles graph:

800px-Carbon-14-10kyr-Hallstadtzeit_Cycles

Anyone notice what has been rising for the last 1,000 or so years?

In fact, says Sami Solanki, the director of the Max Planck Institute for Solar System Research in Katlenburg-Lindau, Germany

The sun has been at its strongest over the past 60 years and may now be affecting global temperatures… the brighter sun and higher levels of so-called "greenhouse gases" both contributed to the change in the Earth’s temperature, but it was impossible to say which had the greater impact.

As it is turning out, it appears it may be the Sun.  CO2 has always been a lagging indicator in warming history until it was recently elevated by some “scientists” to a leading cause.  It has not shown the effect on temperature predicted by warmist models, however.  In fact, it hasn’t even been close even while the ppm of CO2 in the atmosphere has continued to rise. 

The point of all of this?  It appears that those traditionally associated with the AGW scaremongering are toning down their rhetoric even while still attempting, through half-truths, incomplete reporting and implication, to push the AGW agenda, albeit much more subtly now. 

Don’t let them get away with it.

UPDATE: And then, of course, there are those who don’t have a clue and don’t care, especially when they can use this to club the GOP.

~McQ

Twitter: @McQandO


More evidence that there is nothing particularly alarming about climate change today

Some pictures of Greenland taken in the 1930s have revealed glacier melt that is worse than that taking place today:

Recently unearthed photographs taken by Danish explorers in the 1930s show glaciers in Greenland retreating faster than they are today, according to researchers.

The photos in question were taken by the seventh Thule Expedition to Greenland led by Dr Knud Rasmussen in 1932. The explorers were equipped with a seaplane, which they used to take aerial snaps of glaciers along the Arctic island’s coasts.

[…]

It’s difficult to know exactly what’s happening to the Greenland ice in total and very different estimates have been produced in recent times. However Professor Box says that many glaciers along the coasts have started retreating in the past decade.

It now appears that the glaciers were retreating even faster eighty years ago: but nobody worried about it, and the ice subsequently came back again.

The emphasized line is priceless.  Chicken Little stayed home.  

Why were the glaciers on Greenland retreating faster 80 years ago?

[One scientist, Professor Jason] Box, theorises that this is likely to be because of sulphur pollution released into the atmosphere by humans, especially by burning coal and fuel oils. This is known to have a cooling effect.

Unfortunately atmospheric sulphur emissions also cause other things such as acid rain, and as a result rich Western nations cracked down on sulphates in the 1960s. Prof Box believes that this led to warming from the 1970s onward, which has now led to the glaciers retreating since around 2000.

Or, “we cleaned up the air and it got warmer”.   Other scientists disagree:

Still other scientists, differing with Prof Box, offer another picture altogether of Arctic temperatures, in which there were peaks both in the 1930s and 1950s and cooling until the 1990s: and in which the warming trend which resulted in the melting seen by Rasmussen’s expedition actually started as early as 1840, before the industrial revolution and human-driven carbon emission had even got rolling. In that scenario, variations in the Sun seem to have much more weight than is generally accepted by today’s climatologists.

Variations in the Sun!  Whoda thunk?

Bottom line – nothing particularly unusual or worrisome if you actually have come to the conclusion, based on the evidence at hand, that the earth goes through climate cycles.  The key, of course is the fact that a warming trend that resulted in the retreat of the glaciers in the 1930s was begun almost 100 years before without the benefit of the industrial revolution and human carbon emissions.

Then there’s that lingering little scientific fact that CO2 is a lagging indicator, not a cause, of warming.  The fact the alarmist side continues to love to ignore.

Anyway a little context to the “OMG the glaciers are melting”.

~McQ

Twitter: @McQandO

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