philperth2010 wrote on Dec 5^th, 2018 at 8:17pm:



Yes phil. Now how does 97.1% of 33.3% of abstracts convert to 97% of climate scientists? You do understand abstracts are NOT climate scientists as the claim goes.

In fact 34.8% of all authors  endorsed AGW. (according to Cook)

lee wrote on Dec 5^th, 2018 at 8:43pm:


Piss off!!!

From what I have read

There are just as many arguments for climate change as against it.

But we are not analysing sufficient data to get a true indication of what is happening , it's mostly guess work based on a few hundred years of data.
In the hundreds of millions of years of earth existence,  factors we cannot and probably will never know have been in play.

Imagine fleas on a dog
They have lived a comfortable existence for several generations
Suddenly, the climate starts changing, it's getting hotter.

They know there is a change, but cannot account for it
They rack their brains looking for an answer, and decide to take immediate action to cut down on the feeding and breeding frenzy of late, but it still gets hotter.

The doom Sayers blame the young for waste, the doomsayers demand action
But regardless of what they do, it gets hotter.

Panning out, we see the dog relaxing in the sun on a beach.
The first time he has been to the beach for 12 months, several life cycles for the flea.

We are the fleas, we think we know all the answers
Many people can PROFIT from one path, but not the other
So they push their opinion, gain followers, convince grubberments.
But in the long run, we just don't know all the answers.

Greenland's ice sheet melting rate is accelerating, scientists confirm

Both the UN Environment and the Intergovernmental Panel on Climate Change (IPCC) sounded the alarm over the dire climate trajectory we're on, and the huge efforts needed to limit warming to 2 degrees Celsius above pre-industrial levels.

And in June,

research published in Nature pointed to a tripling of the rate of melting of the Antarctic ice sheet over the last five years.

Now, new research published in Nature today has confirmed a similar trend is occurring in the Greenland ice sheet.

Researchers used ice cores to create a 350 year continuous analysis of the melting rate of ice in central west Greenland.

An ice core is a sample taken from an ice pack with a hollow drill, revealing a cross-section that effectively looks back in time, a bit like the rings of a tree.

They found that over the last 20 years, the rate of melting has been as much as five times as high as pre-industrial melt rates, and that the rate of melting is increasing, according to researcher Luke Trusel from Rowan University in the United States.

"The main conclusion that we found is that it's now melting more in recent decades than any time in the last four centuries, and probably more than any time in the last seven to eight thousand years," Dr Trusel said

According to their ice core samples, 2012 was "unambiguously" the most intense melt year on record in Greenland.

An increased rate of melting was detected in the ice cores beginning in the mid-1800s, which was around the same time as the onset of industrial-era Arctic warming.

But it was only during the 1970s that the melting clearly breached the natural range of variability.

In other words, we expect to see some differences in melting between years, but during the 1970s that melting occurred on a scale beyond what could possibly be explained by a fluctuation around a stable average of ice cover.

Significantly, they've confirmed that the increasing melting rate is following an exponential trajectory, caused by positive feedbacks like the albedo effect, according to Dr Trusel.

The albedo effect describes the phenomenon where dark surfaces absorb more heat than reflective white surfaces like ice and snow.

As ice melts, the darker ground beneath absorbs more energy from the sun, which causes even more melting — creating a feedback loop.

"The response of the ice sheet to a warming climate is not linear," Dr Trusel said.

"What that means practically is that, say we have half a degree of warming today, that would produce twice as much or more melting than half a degree that occurred sometime in the past."

Most previous research has used satellite observations and computer modelling to calculate the rate of melting in Greenland.

This new research has allowed scientists to cross-reference their satellite observations against physical ice cores, according to Dr Trusel.



https://www.abc.net.au/news/science/2018-12-06/greenland-ice-sheet-melting-accel...

I agree that Greenland hasn't looked bad for a few years now....

Captain Nemo wrote on Dec 6^th, 2018 at 1:42pm:

Yeah. Captain Nemo and the GRACE data.

"The nature of the gravity field inverse problem amplifies the noise in the GRACE data, which creeps into the mid and high degree and order harmonic coefficients of the Earth’s monthly gravity fields provided by GRACE."

https://link.springer.com/article/10.1007/s00190-012-0548-5

"Accurate GWD* estimation is, however, challenging because of uncertainties in GRACE data processing. "

https://www.nature.com/articles/srep24398

*GWD - Ground Water Depletion.