The Last Decade of Global Anthropogenic Sulfur Dioxide: 2000–2011 Emissions

TitleThe Last Decade of Global Anthropogenic Sulfur Dioxide: 2000–2011 Emissions
Publication TypeJournal Article
Year of Publication2013
JournalEnvironmental Research Letters
Number1
Date Published01/2013
Abstract / Summary

The evolution of global and regional anthropogenic SO2 emissions in the last decade has been estimated through a bottom-up calculation. After increasing until about 2006, we estimate a declining trend continuing until 2011. However, there is strong spatial variability, with North America and Europe continuing to reduce emissions, with an increasing role of Asia and international shipping. China remains a key contributor, but the introduction of stricter emission limits followed by an ambitious program of installing flue gas desulfurization on power plants resulted in a significant decline in emissions from the energy sector and stabilization of total Chinese SO2 emissions. Comparable mitigation strategies are not yet present in several other Asian countries and industrial sectors in general, while emissions from international shipping are expected to start declining soon following an international agreement to reduce the sulfur content of fuel oil. The estimated trends in global SO2emissions are within the range of representative concentration pathway (RCP) projections and the uncertainty previously estimated for the year 2005.

URLhttp://iopscience.iop.org/1748-9326/8/1/014003
DOI10.1088/1748-9326/8/1/014003
Journal: Environmental Research Letters
Year of Publication: 2013
Number: 1
Date Published: 01/2013

The evolution of global and regional anthropogenic SO2 emissions in the last decade has been estimated through a bottom-up calculation. After increasing until about 2006, we estimate a declining trend continuing until 2011. However, there is strong spatial variability, with North America and Europe continuing to reduce emissions, with an increasing role of Asia and international shipping. China remains a key contributor, but the introduction of stricter emission limits followed by an ambitious program of installing flue gas desulfurization on power plants resulted in a significant decline in emissions from the energy sector and stabilization of total Chinese SO2 emissions. Comparable mitigation strategies are not yet present in several other Asian countries and industrial sectors in general, while emissions from international shipping are expected to start declining soon following an international agreement to reduce the sulfur content of fuel oil. The estimated trends in global SO2emissions are within the range of representative concentration pathway (RCP) projections and the uncertainty previously estimated for the year 2005.

DOI: 10.1088/1748-9326/8/1/014003
Citation:
Gu, Y, KN Liou, WL Lee, and LR Leung.  2013.  "The Last Decade of Global Anthropogenic Sulfur Dioxide: 2000–2011 Emissions."  Environmental Research Letters.  https://doi.org/10.1088/1748-9326/8/1/014003.