Arctic sea ice responds to the 'Atlantic multidecadal oscillation' when it is positive we have little ice. when it is negative we have lots of ice, it looks as though it is about to turn negative after a decade plus of being positive.
I don't really know what normal is. We don't really know what it was 1000 years ago, or 900 or 500 or 200 years ago. About 300 years ago we began to generally warm. In the 1970s we had a mild cool period and there have been ups and downs. I was never one to fear arctic ice melting. I grew up in the cold and it was always a good thing when the lakes melted and life could begin again to thrive.
Only by shifting your goal posts can the 2004-2013 average (which is what the grey in your chart represents) be considered "normal". It has been rapidly declining since the 1970s.
From the Danish Meteorological Institute where you got your graph from.
"The records of sea ice thickness are not as precise and reliable as the information gathered on sea ice extent. The reason for this is primarily that it is difficult to obtain good data. DMI has developed a model, which can calculate the sea ice thickness using data from a weather forecast model from the European weather centre ECMWF (European Centre for Medium-Range Weather Forecasts)."
You do accept models now?
"Impact of the changes
The sheer size of the sea ice and the magnitude of the changes mean that effects will be – and already are – noticeable, in the Arctic and beyond. In the future, climate models indicate that we should expect even further melting of the sea ice. In the SWIPA-report from the Arctic Council, it is stated that we can expect a nearly ice-free summer within a few decades."
From the time in the late 70's that they have started measuring it, it has had lows and highs. But when all the data s looked at, it still averages out to be the same. That is one of the points against warming, but make no mistake. With or with out man, the climate has always changed and it will continue to do so.
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Arctic sea ice responds to the 'Atlantic multidecadal oscillation' when it is positive we have little ice. when it is negative we have lots of ice, it looks as though it is about to turn negative after a decade plus of being positive.
one year is not climate
I don't really know what normal is. We don't really know what it was 1000 years ago, or 900 or 500 or 200 years ago. About 300 years ago we began to generally warm. In the 1970s we had a mild cool period and there have been ups and downs. I was never one to fear arctic ice melting. I grew up in the cold and it was always a good thing when the lakes melted and life could begin again to thrive.
Only by shifting your goal posts can the 2004-2013 average (which is what the grey in your chart represents) be considered "normal". It has been rapidly declining since the 1970s.
With all the plastic that is now resident in the oceans, the average water temp will rise. Forget CO2, we need to clean the oceans up.
From the Danish Meteorological Institute where you got your graph from.
"The records of sea ice thickness are not as precise and reliable as the information gathered on sea ice extent. The reason for this is primarily that it is difficult to obtain good data. DMI has developed a model, which can calculate the sea ice thickness using data from a weather forecast model from the European weather centre ECMWF (European Centre for Medium-Range Weather Forecasts)."
You do accept models now?
"Impact of the changes
The sheer size of the sea ice and the magnitude of the changes mean that effects will be – and already are – noticeable, in the Arctic and beyond. In the future, climate models indicate that we should expect even further melting of the sea ice. In the SWIPA-report from the Arctic Council, it is stated that we can expect a nearly ice-free summer within a few decades."
How does that contradict NOAA?
From the time in the late 70's that they have started measuring it, it has had lows and highs. But when all the data s looked at, it still averages out to be the same. That is one of the points against warming, but make no mistake. With or with out man, the climate has always changed and it will continue to do so.
Earth is big and saying this and that that man can change the way it acts over time is like yelling fire in a rain storm......