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The Decline Hiders are circling the solar panel wagons
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Shakun12 tried to show that CO2 caused the Earth to come out of the last Glacial Period. should we go over the mistakes, deceptions and equivical (sic) proxies again?
I'd like to see that. What mistakes, deceptions and equivocal proxies do you believe you have found in Shakun et al 2012? You're not putting Watts up against Nature, are you?
Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation
Nature
- Jeremy D. Shakun,
- Peter U. Clark,
- Feng He,
- Shaun A. Marcott,
- Alan C. Mix,
- Zhengyu Liu,
- Bette Otto-Bliesner,
- Andreas Schmittner
- & Edouard Bard
484,
49–54
(05 April 2012)
doi:10.1038/nature10915
Received
16 September 2011
Accepted
01 February 2012
Published online
04 April 2012
Abstract
The covariation of carbon dioxide (CO2) concentration and temperature in Antarctic ice-core records suggests a close link between CO2 and climate during the Pleistocene ice ages. The role and relative importance of CO2 in producing these climate changes remains unclear, however, in part because the ice-core deuterium record reflects local rather than global temperature. Here we construct a record of global surface temperature from 80 proxy records and show that temperature is correlated with and generally lags CO2 during the last (that is, the most recent) deglaciation. Differences between the respective temperature changes of the Northern Hemisphere and Southern Hemisphere parallel variations in the strength of the Atlantic meridional overturning circulation recorded in marine sediments. These observations, together with transient global climate model simulations, support the conclusion that an antiphased hemispheric temperature response to ocean circulation changes superimposed on globally in-phase warming driven by increasing CO2 concentrations is an explanation for much of the temperature change at the end of the most recent ice age.
http://www.nature.com/nature/journal/v484/n7392/full/nature10915.html
Shakun12 tried to show that CO2 caused the Earth to come out of the last Glacial Period. should we go over the mistakes, deceptions and equivical (sic) proxies again?
I'd like to see that. What mistakes, deceptions and equivocal proxies do you believe you have found in Shakun et al 2012? You're not putting Watts up against Nature, are you?
Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation
Nature
- Jeremy D. Shakun,
- Peter U. Clark,
- Feng He,
- Shaun A. Marcott,
- Alan C. Mix,
- Zhengyu Liu,
- Bette Otto-Bliesner,
- Andreas Schmittner
- & Edouard Bard
484,
49–54
(05 April 2012)
doi:10.1038/nature10915
Received
16 September 2011
Accepted
01 February 2012
Published online
04 April 2012
Abstract
The covariation of carbon dioxide (CO2) concentration and temperature in Antarctic ice-core records suggests a close link between CO2 and climate during the Pleistocene ice ages. The role and relative importance of CO2 in producing these climate changes remains unclear, however, in part because the ice-core deuterium record reflects local rather than global temperature. Here we construct a record of global surface temperature from 80 proxy records and show that temperature is correlated with and generally lags CO2 during the last (that is, the most recent) deglaciation. Differences between the respective temperature changes of the Northern Hemisphere and Southern Hemisphere parallel variations in the strength of the Atlantic meridional overturning circulation recorded in marine sediments. These observations, together with transient global climate model simulations, support the conclusion that an antiphased hemispheric temperature response to ocean circulation changes superimposed on globally in-phase warming driven by increasing CO2 concentrations is an explanation for much of the temperature change at the end of the most recent ice age.
http://www.nature.com/nature/journal/v484/n7392/full/nature10915.html
Shakun12 tried to show that CO2 caused the Earth to come out of the last Glacial Period. should we go over the mistakes, deceptions and equivical (sic) proxies again?
I'd like to see that. What mistakes, deceptions and equivocal proxies do you believe you have found in Shakun et al 2012? You're not putting Watts up against Nature, are you?
Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation
Nature
- Jeremy D. Shakun,
- Peter U. Clark,
- Feng He,
- Shaun A. Marcott,
- Alan C. Mix,
- Zhengyu Liu,
- Bette Otto-Bliesner,
- Andreas Schmittner
- & Edouard Bard
484,
49–54
(05 April 2012)
doi:10.1038/nature10915
Received
16 September 2011
Accepted
01 February 2012
Published online
04 April 2012
Abstract
The covariation of carbon dioxide (CO2) concentration and temperature in Antarctic ice-core records suggests a close link between CO2 and climate during the Pleistocene ice ages. The role and relative importance of CO2 in producing these climate changes remains unclear, however, in part because the ice-core deuterium record reflects local rather than global temperature. Here we construct a record of global surface temperature from 80 proxy records and show that temperature is correlated with and generally lags CO2 during the last (that is, the most recent) deglaciation. Differences between the respective temperature changes of the Northern Hemisphere and Southern Hemisphere parallel variations in the strength of the Atlantic meridional overturning circulation recorded in marine sediments. These observations, together with transient global climate model simulations, support the conclusion that an antiphased hemispheric temperature response to ocean circulation changes superimposed on globally in-phase warming driven by increasing CO2 concentrations is an explanation for much of the temperature change at the end of the most recent ice age.
http://www.nature.com/nature/journal/v484/n7392/full/nature10915.html
Wasn't that paper withdrawn? Evidence to show that CO2 FOLLOWED the rise was instrumental in its demise..