2014 was the Hottest Year on Record...

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Post by Monk (in hiding) on Mon Feb 02, 2015 9:06 am

Arctic Cooling, Ice Age Trend, Appears Reversed by CO2 Emissions

—  September 15, 2009

Rising global temperatures caused by humanity’s relentless appetite for carbon-based energy are not only changing life for humans, they appear to have reversed an Arctic cooling trend otherwise leading to the next ice age, a study published in the journal Science suggests.

The study, led by researchers at Northern Arizona University, examined temperature proxy records above 60 degrees North latitude, chronicled by decade for the past 2,000 years.


http://www.yaleclimateconnections.org/2009/09/arctic-cooling-ice-age-trend-appears-reversed-by-co2-emissions/

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Post by Rockhopper on Mon Feb 02, 2015 2:39 pm

"
Arctic Cooling, Ice Age Trend, Appears Reversed by CO2 Emissions
[i] —  September 15, 2009


Rising global temperatures caused by humanity’s relentless appetite for carbon-based energy are not only changing life for humans, they appear to have reversed an Arctic cooling trend otherwise leading to the next ice age, a study published in the journal Science suggests.

The study, led by researchers at Northern Arizona University, examined temperature proxy records above 60 degrees North latitude, chronicled by decade for the past 2,000 years.
The researchers found that the Arctic was undergoing a pervasive cooling trend 2,000 years ago that continued through the Middle Ages and into the Little Ice Age. The trend was driven by the cyclical change in the orientation of the North Pole and the Sun, and resulted in warming of the Arctic by less than half a degree Fahrenheit per millennium, The New York Times reported in a story on the research.
But since 1900, the region has warmed by 2.2 degrees.
“The cooling trend was reversed during the 20th century, with four of the five warmest decades of our 2000-year-long reconstruction occurring between 1950 and 2000,” the researchers said.
In The New York Times article, lead researcher and author Darrell S. Kaufman said “The slow cooling trend [up until 1950] is trivial compared to the warming that’s been happening and that’s in the pipeline,” he said.
"

Full quote from that site. Bold is my emphasis.

Tim.

[/i]
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Post by Monk (in hiding) on Mon Feb 02, 2015 4:15 pm

Ok, what's your point?

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Post by Rockhopper on Mon Feb 02, 2015 9:03 pm

Well let me summarise: your hypothesis postulated that CO2 increases after a rise in global temps (lags it). Thereby inferring that an increase in CO2 can not be the cause of GW. 

We have pointed out that all indications point to the opposite, namely that increasing CO2 increases the temp. Over the last decade or so the excess heat has been absorbed by the oceans which have subsequently got warmer.

The Atlantic is directly connected to the Arctic Ocean whereas the Pacific is connected by the narrow Bering Strait. The Atlantic is getting warmer and that warmth is flowing into the Arctic hence the loss of Arctic sea ice.

The situation now is that the atmosphere is heating again hence 2014 being the hottest year on record. John Tyndall proved by experiment that even a small increase on CO2 can and does increase the temp. His experiments have been repeated many times since 1860 and all have the same result. The increase from 280ppm in his day to 400ppm now has been from human activity.

The sea level has risen 6" and that doesn't sound like much and due mostly to thermal expansion but it is already creating problems in the Maldives, Kiribati, Venice, Italy and Miami, all of whom are getting sea water flooding at high tides. It's going to get worse too.

Tim.
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Post by Monk (in hiding) on Tue Feb 03, 2015 9:43 am

The size and shape of the oceans are changing slowly over time. (On average, the ocean floor has been gradually sinking since the last Ice Age peak, 20,000 years ago.)

http://www.epa.gov/climatechange/science/indicators/oceans/sea-level.html

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