scholarly journals Emissions from the Taxi and For-Hire Vehicle Transportation Sector in New York City

Author(s):  
Jen Roberton ◽  
Stephan Schmidt ◽  
Rodney Stiles

<p>The launch of app-based for-hire vehicle (FHV) services like Uber and Lyft has led to increased mobility options, but the associated increase in vehicular traffic has also presented challenges. In New York City, the number of FHVs tripled between 2010 and 2019, to over one hundred thousand, due to the advent of such companies. This study seeks to understand the impact this increase in FHV usage has had on greenhouse gas emissions in New York City. The study uses data collected by the NYC Taxi and Limousine Commission, which regulates the FHV and taxi industries, and the NYC Mayor’s Office of Sustainability, which publishes the City’s greenhouse gas emissions inventory. The main result of the study is that although the overall per-vehicle efficiency of the fleet has improved, the high growth in registered vehicles has led to emissions from FHVs and taxis increasing 66 percent from 2010 to 2018. Electric vehicles present an opportunity for emissions reductions in New York City’s FHV fleet if barriers to vehicle adoption are adequately addressed and if adoption of EVs does not outpace vehicle attrition. </p>

2020 ◽  
Author(s):  
Jen Roberton ◽  
Stephan Schmidt ◽  
Rodney Stiles

<p>The launch of app-based for-hire vehicle (FHV) services like Uber and Lyft has led to increased mobility options, but the associated increase in vehicular traffic has also presented challenges. In New York City, the number of FHVs tripled between 2010 and 2019, to over one hundred thousand, due to the advent of such companies. This study seeks to understand the impact this increase in FHV usage has had on greenhouse gas emissions in New York City. The study uses data collected by the NYC Taxi and Limousine Commission, which regulates the FHV and taxi industries, and the NYC Mayor’s Office of Sustainability, which publishes the City’s greenhouse gas emissions inventory. The main result of the study is that although the overall per-vehicle efficiency of the fleet has improved, the high growth in registered vehicles has led to emissions from FHVs and taxis increasing 66 percent from 2010 to 2018. Electric vehicles present an opportunity for emissions reductions in New York City’s FHV fleet if barriers to vehicle adoption are adequately addressed and if adoption of EVs does not outpace vehicle attrition. </p>


2017 ◽  
Vol 39 (3) ◽  
pp. 315-331 ◽  
Author(s):  
David Hsu ◽  
Ting Meng ◽  
Albert Han ◽  
Daniel Suh

Buildings and energy systems are shaped within many different kinds of departments and agencies throughout local governments. This article argues that further opportunities exist to reduce the energy use of buildings and their associated greenhouse gas (GHG) emissions through the existing powers and jurisdiction of local governments. We use the example of New York City, where buildings produced 73 percent of all GHG emissions in 2014. By analyzing a data set of almost four thousand large buildings, we identify new opportunities for planners and other professionals to reduce energy use and GHG emissions by focusing on different mechanisms and/or collaborations.


2021 ◽  
Vol 4 ◽  
Author(s):  
Raghul Elangovan ◽  
Ondrea Kanwhen ◽  
Ziqian Dong ◽  
Ahmed Mohamed ◽  
Roberto Rojas-Cessa

New York City’s food distribution system is among the largest in the United States. Food is transported by trucks from twelve major distribution centers to the city’s point-of-sale locations. Trucks consume large amounts of energy and contribute to large amounts of greenhouse gas emissions. Therefore, there is interest to increase the efficiency of New York City’s food distribution system. The Gowanus district in New York City is undergoing rezoning from an industrial zone to a mix residential and industrial zone. It serves as a living lab to test new initiatives, policies, and new infrastructure for electric vehicles. We analyze the impact of electrification of food-distribution trucks on greenhouse gas emissions and electricity demand in this paper. However, such analysis faces the challenges of accessing available and granular data, modeling of demands and deliveries that incorporate logistics and inventory management of different types of food retail stores, delivery route selection, and delivery schedule to optimize food distribution. We propose a framework to estimate truck routes for food delivery at a district level. We model the schedule of food delivery from a distribution center to retail stores as a vehicle routing problem using an optimization solver. Our case study shows that diesel trucks consume 300% more energy than electric trucks and generate 40% more greenhouse gases than diesel trucks for food distribution in the Gowanus district.


2017 ◽  
Vol 4 (3) ◽  
pp. 62-72
Author(s):  
O. Zhukorsky ◽  
O. Nykyforuk ◽  
N. Boltyk

Aim. Proper development of animal breeding in the conditions of current global problems and the decrease of anthropogenic burden on environment due to greenhouse gas emissions, caused by animal breeding activity, require the study of interaction processes between animal breeding and external climatic conditions. Methods. The theoretical substantiation of the problem was performed based on scientifi c literature, statistical informa- tion of the UN Food and Agriculture Organization and the data of the National greenhouse gas emissions inventory in Ukraine. Theoretically possible emissions of greenhouse gases into atmosphere due to animal breeding in Ukraine and specifi c farms are calculated by the international methods using the statistical infor- mation about animal breeding in Ukraine and the economic-technological information of the activity of the investigated farms. Results. The interaction between the animal breeding production and weather-and-climate conditions of environment was analyzed. Possible vectors of activity for the industry, which promote global warming and negative processes, related to it, were determined. The main factors, affecting the formation of greenhouse gases from the activity of enterprises, aimed at animal breeding production, were characterized. Literature data, statistical data and calculations were used to analyze the role of animal breeding in the green- house gas emissions in global and national framework as well as at the level of specifi c farms with the consid- eration of individual specifi cities of these farms. Conclusions. Current global problems require clear balance between constant development of sustainable animal breeding and the decrease of the carbon footprint due to the activity of animal breeding.


2008 ◽  
Vol 2008 (6) ◽  
pp. 783-792 ◽  
Author(s):  
Patricia Scanlan ◽  
Holly Elmendorf ◽  
Hari Santha ◽  
James Rowan

2006 ◽  
Vol 19 (13) ◽  
pp. 3055-3069 ◽  
Author(s):  
Peter A. Stott ◽  
John F. B. Mitchell ◽  
Myles R. Allen ◽  
Thomas L. Delworth ◽  
Jonathan M. Gregory ◽  
...  

Abstract This paper investigates the impact of aerosol forcing uncertainty on the robustness of estimates of the twentieth-century warming attributable to anthropogenic greenhouse gas emissions. Attribution analyses on three coupled climate models with very different sensitivities and aerosol forcing are carried out. The Third Hadley Centre Coupled Ocean–Atmosphere GCM (HadCM3), Parallel Climate Model (PCM), and GFDL R30 models all provide good simulations of twentieth-century global mean temperature changes when they include both anthropogenic and natural forcings. Such good agreement could result from a fortuitous cancellation of errors, for example, by balancing too much (or too little) greenhouse warming by too much (or too little) aerosol cooling. Despite a very large uncertainty for estimates of the possible range of sulfate aerosol forcing obtained from measurement campaigns, results show that the spatial and temporal nature of observed twentieth-century temperature change constrains the component of past warming attributable to anthropogenic greenhouse gases to be significantly greater (at the 5% level) than the observed warming over the twentieth century. The cooling effects of aerosols are detected in all three models. Both spatial and temporal aspects of observed temperature change are responsible for constraining the relative roles of greenhouse warming and sulfate cooling over the twentieth century. This is because there are distinctive temporal structures in differential warming rates between the hemispheres, between land and ocean, and between mid- and low latitudes. As a result, consistent estimates of warming attributable to greenhouse gas emissions are obtained from all three models, and predictions are relatively robust to the use of more or less sensitive models. The transient climate response following a 1% yr−1 increase in CO2 is estimated to lie between 2.2 and 4 K century−1 (5–95 percentiles).


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