Atmospheric verification of anthropogenic CO2 emission trends

Francey, R. J.; Trudinger, C. M.; Schoot, Marcel van der; Law, R. M.; Krummel, P. B.; Langenfelds, Ray L.; Steele, L. P.; Allison, C. E.; Stavert, Ann R.; Andres, R. J.; Rödenbeck, Christian

doi:10.1038/nclimate1817

Cited by 99 publications

(70 citation statements)

References 29 publications

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“…However, it could contribute to errors in our estimated fluxes on decadal timescales, particularly if changes in discrimination due to climate cause significant variability in ı 13 C but not CO 2 . Also, any biases in the assumed fossil fuel emissions over the last 20-40 years [Francey et al, 2013] could alter the inferred partitioning.…”

Section: Industrialmentioning

confidence: 99%

A revised 1000 year atmospheric δ¹³C‐CO₂ record from Law Dome and South Pole, Antarctica

et al. 2013

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[1] We present new measurements of ı 13 C of CO 2 extracted from a high-resolution ice core from Law Dome (East Antarctica), together with firn measurements performed at Law Dome and South Pole, covering the last 150 years. Our analysis is motivated by the need to better understand the role and feedback of the carbon (C) cycle in climate change, by advances in measurement methods, and by apparent anomalies when comparing ice core and firn air ı 13 C records from Law Dome and South Pole. We demonstrate improved consistency between Law Dome ice, South Pole firn, and the Cape Grim (Tasmania) atmospheric ı 13 C data, providing evidence that our new record reliably extends direct atmospheric measurements back in time. We also show a revised version of early ı 13 C measurements covering the last 1000 years, with a mean preindustrial level of -6.50 . Finally, we use a Kalman Filter Double Deconvolution to infer net natural CO 2 fluxes between atmosphere, ocean, and land, which cause small ı 13 C deviations from the predominant anthropogenically induced ı 13 C decrease. The main features found from the previous ı 13 C record are confirmed, including the ocean as the dominant cause for the 1940 A.D. CO 2 leveling. Our new record provides a solid basis for future investigation of the causes of decadal to centennial variations of the preindustrial atmospheric CO 2 concentration. Those causes are of potential significance for predicting future CO 2 levels and when attempting atmospheric verification of recent and future global carbon emission mitigation measures through Coupled Climate Carbon Cycle Models.

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Section: Industrialmentioning

confidence: 99%

A revised 1000 year atmospheric δ¹³C‐CO₂ record from Law Dome and South Pole, Antarctica

et al. 2013

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“…Marland et al, 2007;Macknick, 2009;Afsah and Aller, 2010;Ciais et al, 2010;Andres et al, 2012), but the task is not trivial. Francey et al (2013) suggest large underreporting, and hence uncertainty, in the global total of FFCO 2 emissions around years 1995Á2005 based on atmospheric measurements. This manuscript does not attempt to compare national/global FFCO 2 estimates from different sources, nor does it attempt to evaluate the relative quality of the different sources of FFCO 2 data.…”

Section: Introductionmentioning

confidence: 99%

A new evaluation of the uncertainty associated with CDIAC estimates of fossil fuel carbon dioxide emission

Andres¹,

Boden

Higdon

2014

Tellus B: Chemical and Physical Meteorology

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“…The increase of carbon dioxide concentration from 310 to 400 ppm in the last 50 years is considered to be responsible for 1 °C increase of the atmosphere temperature. [1,2] Reduction of carbon emission is considered as a major goal for the environment, in order to avoid drastic climate change which can occur if atmospheric temperature would rise for 2 °C. [3] In 2010 electricity and heat production consumed 4840 million tons of oil equivalent (MTOE) of coal (46.5%), natural gas (22.8%) and oil (5.7%) as well as of nuclear (14.9%) and renewable energy (10.2%) [4].…”

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confidence: 99%

Stability of blended polymeric materials for CO2 separation

Lillepärg

Georgopanos

Shishatskiy

2014

Journal of Membrane Science

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Abstract:Blend materials of Pebax ® 1657 and low molecular weight poly(ethylene glycol)s were studied for their stability at temperature up to 90°C. It was found that a threshold of molecular weight exists at which leaching out of the low molecular weight compound from the polymer matrix becomes minimal. Poly(ethylene glycol) with methyl end groups having a molecular weight of 500 g/mol provides a blend material with a CO 2 permeability coefficient higher than in case of Polyactive™. PEBAX ® /DM500 blend can be a cheaper alternative to tailor made Polyactive™ in large scale production of thin film composite membrane.

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Atmospheric verification of anthropogenic CO2 emission trends

Cited by 99 publications

References 29 publications

A revised 1000 year atmospheric δ¹³C‐CO₂ record from Law Dome and South Pole, Antarctica

A revised 1000 year atmospheric δ¹³C‐CO₂ record from Law Dome and South Pole, Antarctica

A new evaluation of the uncertainty associated with CDIAC estimates of fossil fuel carbon dioxide emission

Stability of blended polymeric materials for CO2 separation

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Atmospheric verification of anthropogenic CO2 emission trends

Cited by 99 publications

References 29 publications

A revised 1000 year atmospheric δ13C‐CO2 record from Law Dome and South Pole, Antarctica

A revised 1000 year atmospheric δ13C‐CO2 record from Law Dome and South Pole, Antarctica

A new evaluation of the uncertainty associated with CDIAC estimates of fossil fuel carbon dioxide emission

Stability of blended polymeric materials for CO2 separation

Contact Info

Product

Resources

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A revised 1000 year atmospheric δ¹³C‐CO₂ record from Law Dome and South Pole, Antarctica

A revised 1000 year atmospheric δ¹³C‐CO₂ record from Law Dome and South Pole, Antarctica