Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy
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2018
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ndltd-OhioLink-oai-etd.ohiolink.edu-osu15345230194433082021-08-03T07:08:18Z Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy Huffman, Demie R. Environmental Science black carbon Greenland climate change aerosols policy Refractory black carbon (rBC) particles are naturally and anthropogenically emitted as a by-product of the incomplete combustion of carbonaceous materials. As a strong absorber of incoming solar radiation, rBC warms whichever part of the atmosphere in which the particle is suspended and decreases the albedo of any ice- or snow-covered surface onto which it has been deposited. This makes the Arctic particularly vulnerable to rBC deposition, as atmospheric pollutants concentrate there and deposited rBC will accelerate glacier melt and make the immediate area more susceptible to warming. Within the past 15 years, global attention has turned to targeting rBC emissions in mitigation strategies in an attempt to slow the rate of near-term climate change, as rBC particles only have an atmospheric residence time of 7-10 days, which provides mitigation efforts with more immediate results. This research utilizes a firn core collected from Crawford Point (CP), Greenland in the summer of 2007 by the Program for Arctic Regional Climate Assessment (PARCA) to quantify and characterize the deposition of rBC and other absorbing materials, such as dissolved organic matter (DOM), onto the Greenland ice sheet (GrIS) from 1980-2007. Median rBC concentration throughout the CP firn core is 0.86 g/L and ranges from 0.02-19.93 µg/L. The declining trends observed in anthropogenic rBC emissions and deposition to CP suggest that the implemented mitigation efforts may be successful. However, Canadian forest fires can lead to high deposition events at CP, which will only get worse as climate change impacts continue to worsen.This research also aims to determine emission and source of rBC particles in three circumpolar countries – the Russian Federation, Canada, and the United States of America – and one regional economic integration organization – the European Union – and their mitigation efforts to decrease air pollution as it relates to rBC. The two largest sources of anthropogenic rBC emissions globally are residential combustion (for heating) and diesel engines (for on- and off-road transportation). Future rBC mitigation efforts should focus on these sectors and use a variety of intergovernmental economic incentives, information dissemination and regulatory tactics. Future policy work should also focus on establishing comparable BC emission inventories by reaching a global consensus on (1) the definition of BC, (2) how to define various BC emission sectors, (3) and which quantification techniques to use when creating emission inventories. 2018 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1534523019443308 http://rave.ohiolink.edu/etdc/view?acc_num=osu1534523019443308 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Environmental Science black carbon Greenland climate change aerosols policy |
| spellingShingle |
Environmental Science black carbon Greenland climate change aerosols policy Huffman, Demie R. Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy |
| author |
Huffman, Demie R. |
| author_facet |
Huffman, Demie R. |
| author_sort |
Huffman, Demie R. |
| title |
Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy |
| title_short |
Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy |
| title_full |
Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy |
| title_fullStr |
Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy |
| title_full_unstemmed |
Refractory black carbon at Crawford Point, Greenland: Implications for mitigation policy |
| title_sort |
refractory black carbon at crawford point, greenland: implications for mitigation policy |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2018 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1534523019443308 |
| work_keys_str_mv |
AT huffmandemier refractoryblackcarbonatcrawfordpointgreenlandimplicationsformitigationpolicy |
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1719454535520354304 |