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Ben DeAngelo is the Deputy Executive Director of the U.S. Global Change Research Program (USGCRP) and also an advisor... moreBen DeAngelo is the Deputy Executive Director of the U.S. Global Change Research Program (USGCRP) and also an advisor on climate change with the White House Office of Science and Technology Policy (OSTP). edit
Research Interests:
Research Interests:
Black carbon (BC) and organic carbon (OC) aerosols have been identified as having potentially significant impacts on climate change, particularly at regional scales. However, the appropriate role for BC and OC emissions in any climate... more
Black carbon (BC) and organic carbon (OC) aerosols have been identified as having potentially significant impacts on climate change, particularly at regional scales. However, the appropriate role for BC and OC emissions in any climate change mitigation strategy remains uncertain. We present emission inventories and projections for BC and OC in the United States circa 2000, and projections for the years 2015 and 2020. The projected U.S. emission inventories for 2015 and 2020 take into account recently promulgated regulations that target PM2.5 (of which BC and OC are essentially subcomponents), such as the Clean Air Highway Diesel Rule (or 2007 Highway Rule), the Clean Air Nonroad Diesel Rule, the Clean Air Interstate Rule, and others. BC emissions in the United States are projected to decline by 42 percent from 2001 to 2020, primarily as a result of diesel vehicle regulations. In contrast, OC emissions are projected to decline by only 9 percent, because open biomass burning emissions...
The uncertainties of the black carbon-climate linkage remain large with regard to emissions quantification, temporal and regional atmospheric concentrations, and net radiative and other climatic effects. Given these physical uncertainties... more
The uncertainties of the black carbon-climate linkage remain large with regard to emissions quantification, temporal and regional atmospheric concentrations, and net radiative and other climatic effects. Given these physical uncertainties plus other economic and emission control considerations, what is the appropriate role for BC and organic carbon in any climate change mitigation strategy? If the climate effects of BC are considered `large enough' (a judgment call) to warrant emission controls to mitigate climate change, additional considerations are necessary to determine how best to do this. First, BC cannot be singly targeted, as BC is co-emitted with OC in various ratios depending on fuel type and combustion technology. The climate effects of any control strategy will depend on the net BC and OC, plus possible greenhouse gas, co-effects, which in turn will vary by specific emission source, sector and region. Second, the extent to which air quality policies (primarily target...
... Page 293. 274 de la Chesnaye et al. herds are large and there is significant room for improved effi- ciency (eg Africa, Brazil, China, and India). ... T&D= transmission and distribution; AC= air condition; GIS= manufacturing of... more
... Page 293. 274 de la Chesnaye et al. herds are large and there is significant room for improved effi- ciency (eg Africa, Brazil, China, and India). ... T&D= transmission and distribution; AC= air condition; GIS= manufacturing of gas-insulated switchgear. ...
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Research Interests:
Research Interests:
This innovative new feature generates a list of articles' also read'by other users based on them reading the original article. Article abstracts citations and references are all considered and weighted accordingly. We hope that... more
This innovative new feature generates a list of articles' also read'by other users based on them reading the original article. Article abstracts citations and references are all considered and weighted accordingly. We hope that this will help you find relevant papers for your ...
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10 Abstract. This study develops first-order estimates of water quality co-effects of terrestrial green 11 house gas (GHG) emission offset strategies in U.S. agriculture by linking a national level agricultural 12 sector model (ASMGHG)... more
10 Abstract. This study develops first-order estimates of water quality co-effects of terrestrial green 11 house gas (GHG) emission offset strategies in U.S. agriculture by linking a national level agricultural 12 sector model (ASMGHG) to a national level water quality model (NWPCAM). The simulated policy 13 scenario considers GHG mitigation incentive payments of $25 and $50 per tonne, carbon equivalent 14 to landowners for reducing emissions or enhancing the sequestration of GHG through agricultural 15 and land-use practices. ASMGHG projects that these GHG price incentives could induce widespread 16 conversion of agricultural to forested lands, along with alteration of tillage practices, crop mix on land 17 remaining in agriculture, and livestock management. This study focuses on changes in cropland use 18 and management. The results indicate that through agricultural cropland about 60 to 70 million tonnes 19 of carbon equivalent (MMTCE) emissions can be mitigated annually in the ...
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Research Interests:
Geography, Earth Sciences, Soil, Carbon Dioxide, Carbon, and 29 moreChina, Climate, Waste Management, Water Management, Biological Sciences, Seasonality, Environmental Sciences, Disasters, Emission reduction, Oryza Sativa, Methane, Greenhouse Gas Emissions, Soil Carbon, Water Conservation, Field Study, Water Use, Greenhouse Gas, Environmental quality, Greenhouse Effect, Nitrous Oxide, Time Factors, Management Practice, Fertilizers, Gases, Seasons, Large Scale, Environment Quality, Ammonium Sulfate, and Air Pollutants
Conversion of native vegetation to cropland and intensification of agriculture typically result in increased greenhouse gas (GHG) emissions (mainly N2O and CH4) and more NO3 leached below the root zone and into waterways. Agricultural... more
Conversion of native vegetation to cropland and intensification of agriculture typically result in increased greenhouse gas (GHG) emissions (mainly N2O and CH4) and more NO3 leached below the root zone and into waterways. Agricultural soils are often a source but can also be a sink of CO2. Regional and larger scale estimates of GHG emissions are usually obtained using IPCC