Parth Vaishnav
Pittsburgh
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Asst. Prof. of Environment & Sustainability @UMSEAS. @CMU_EPP, @TechPolicyMPhil, @NUSingapore alum. Energy, environment, climate, technology, policy. Views mine
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Articles by Parth Vaishnav
Would a $1 rideshare fee affect wealthier or working-class Philadelphians more?
Mayor Cherelle Parker has proposed a $1 fee on all Uber, Lyft and other rideshare trips in the city to begin in 2027. The projected $48 million annual revenue would go entirely to support the chronically underfunded Philadelphia school district, which faces a $300 million budget deficit. Critics, including Uber, claim the tax will disproportionately hurt working-class riders.
Would a $1 rideshare fee affect wealthier or working‑class Philadelphians more? 2 Chicago studies offer some perspective
Credit: Unsplash/CC0 Public Domain Philadelphia Mayor Cherelle Parker has proposed a US$1 fee on all Uber, Lyft and other rideshare trips in the city to begin in 2027. The projected $48 million annual revenue would go entirely to support the chronically underfunded Philadelphia school district, which faces a $300 million budget deficit. Critics, including Uber, claim the tax will disproportionately hurt working-class riders.
Would a $1 rideshare fee affect wealthier or working-class Philadelphians more? 2 Chicago studies offer some perspective
This post was originally published on this site. By Parth Vaishnav, Carnegie Mellon University and Miki Tsuchiya, University of Michigan Riders will pay about $30 per hour in time saved when deciding between using a ride-hailing app or public transportation, one study found. Michele Pevide/E+ Collection via Getty Images Philadelphia Mayor Cherelle Parker has proposed a US$1 fee on all Uber, Lyft and other rideshare trips in the city to begin in 2027.
Would a $1 rideshare fee affect wealthier or working-class Philadelphians more? 2 Chicago studies offer some perspective
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Would a $1 rideshare fee affect wealthier or working‑class Philadelphians more? 2 Chicago studies offer some perspective Original
Philadelphia Mayor Cherelle Parker has proposed a US$1 fee on all Uber, Lyft and other rideshare trips in the city to begin in 2027. The projected $48 million annual revenue would go entirely to support the chronically underfunded Philadelphia school district, which faces a $300 million budget deficit. Critics, including Uber, claim the tax will disproportionately hurt working-class riders.
Would a $1 rideshare fee affect wealthier or working-class Philadelphians more? 2 Chicago studies offer some perspective
Philadelphia Mayor Cherelle Parker has proposed a US$1 fee on all Uber, Lyft and other rideshare trips[1] in the city to begin in 2027. The projected $48 million annual revenue would go entirely to support the chronically underfunded[2] Philadelphia school district, which faces a $300 million budget deficit[3]. Critics, including Uber[4], claim the tax will disproportionately hurt working-class riders.
Efficient electrification in a warming climate could contribute to keeping energy burdens in check
Abstract Global warming and electric heat pump adoption will, together, likely have a complex effect on energy burdens in the United States. Here, for 10,000 representative buildings in 28 U.S. cities, we estimate the distribution of monthly and annual energy burdens for every combination of current and future (electrified) heating and cooling systems, and the historical and future climates.
Technological improvements in EV batteries offset climate-induced durability challenges - Nature Climate Change
Abstract Electric vehicles (EVs) are key to transportation decarbonization, yet their battery performance and longevity are vulnerable to temperature extremes, which will be affected by climate change. Battery technology advancements moderate this vulnerability, a dynamic rarely captured in technology assessments under future climates. Here we show that technological advancements have largely mitigated battery lifetime reductions driven by climate change.
Vehicle-to-home charging can cut costs and emissions - Nature Energy
By optimizing the timing of electricity purchases for electric vehicle (EV) charging at home, as well as shifting electricity purchases for other household loads, US EV owners could reduce their lifetime charging costs by 40–90%, and lifecycle greenhouse gas emissions from household electricity use by 70–250%. Integrating EVs with homes can increase the greenhouse gas reductions they deliver, while reducing the cost of EV ownership.
Correction to “Chicago Riders’ Choice of Uber and Lyft over Transit Implies a Median Breakeven Value of Travel Time Equal to the Regional Hourly Wage of $30 per Hour”
Tables S1, S4, and S5 have been corrected in the new version of the Supporting Information published here. The initial error occurred in part because, in the supplemental tables only, we used incorrect values of the social cost of carbon ($58 per ton of CO2, rather than $190 per ton of CO2, which we used in the article). The revised tables now accurately reflect the inputs for our models and the results published in the main article, which remain unchanged and correct.
Chicago Riders’ Choice of Uber and Lyft over Transit Implies a Median Breakeven Value of Travel Time Equal to the Regional Hourly Wage of $30 per Hour
Introduction Click to copy section linkSection link copied! Decarbonization of light duty vehicles is critical, as the transportation sector represents around 30% of total green house gas (GHG) emissions in the US, more than half of which are from light duty vehicles. (1,2) The US government has set targets to electrify 50% of new light-duty vehicle sales by 2030 and to achieve 100% grid decarbonization by 2035, along with economy-wide emissions reduction of 50–52% by 2030, from 2005 levels.
Chicago Riders’ Choice of Uber and Lyft over Transit Implies a Median Breakeven Value of Travel Time Equal to the Regional Hourly Wage of $30 per Hour
Introduction Click to copy section linkSection link copied! Decarbonization of light duty vehicles is critical, as the transportation sector represents around 30% of total green house gas (GHG) emissions in the US, more than half of which are from light duty vehicles. (1,2) The US government has set targets to electrify 50% of new light-duty vehicle sales by 2030 and to achieve 100% grid decarbonization by 2035, along with economy-wide emissions reduction of 50–52% by 2030, from 2005 levels.
Implications of Green Technologies for Environmental Justice
Abstract There are large disparities in access to green technologies between countries and among different demographic groups within countries. Unless carefully managed, the energy transition risks exacerbating some of these inequalities, for example, by burdening those who are excluded from efficient new technologies with the costs of maintaining legacy infrastructure.
Sustained cost declines in solar PV and battery storage needed to eliminate coal generation in India
More ambitious emission reduction targets for greenhouse gases than those submitted by countries' Nationally Determined Contributions are needed to achieve the temperature goals of the Paris Agreement [1–4]. This will require accelerated deployment of clean energy solutions such as wind power, solar power, and energy storage technology [4, 5]. India is the world's third largest emitter of carbon dioxide with roughly 40% of annual CO2 emissions derived from coal power generation [6, 7].
The role of pickup truck electrification in the decarbonization of light-duty vehicles
Electrification can reduce the greenhouse gas (GHG) emissions of light-duty vehicles. Previous studies have focused on comparing battery electric vehicle (BEV) sedans to their conventional internal combustion engine vehicle (ICEV) or hybrid electric vehicle (HEV) counterparts.
US residential heat pumps: the private economic potential and its emissions, health, and grid impacts
To avoid the worst effects of climate change, the global economy continues to seek opportunities to reduce greenhouse gas emissions. One of those opportunities is electrification, where energy-consuming activities switch from using fossil fuels to clean electricity.
Charging Strategies to Minimize Greenhouse Gas Emissions of Electrified Delivery Vehicles
Electrification of delivery fleets has emerged as an important opportunity to reduce the transportation sector’s environmental impact, including reducing greenhouse gas (GHG) emissions. When, where, and how vehicles are charged, however, impact the reduction potential. Not only does the carbon intensity of the grid vary across time and space, but charging decisions also influence battery degradation rates, resulting in more or less frequent battery replacement.
Can running an air conditioner in reverse save the planet?
It’s necessary but not sufficient. We also need to weatherize homes and clean the grid. Stabilizing Earth’s temperature requires that humans add no net greenhouse gasses to the atmosphere. Keeping the increase in temperature relative to pre-industrial times to below 1.5°C requires that we get to net-zero emissions before mid-century. To achieve this, we must stop burning fossil fuels like natural gas to heat our buildings and switch to efficient electric heating solutions such as heat pumps.
Converting existing transmission corridors to HVDC is an overlooked option for increasing transmission capacity
Significance A sustainable electricity grid will likely need to move large amounts of low-carbon bulk power as part of a strategy to reduce emissions. That will require expansion of transmission capacity, and changes in the topology of the system, even as the use of distributed generation increases. In many cases, maximizing the capacity of existing transmission corridors may best be done by conversion to high-voltage direct current (HVDC).
The Environmental Consequences of Electrifying Space Heating
Note Due to a production error, this paper was published on July 27, 2020, with the incorrect version of Figure 2. Figure 3 also had errors. The corrected version was published on July 30, 2020. 1.
Could 3D Printing Lead to Distributed Manufacturing?
July 11, 2019 Additive manufacturing (AM), also known as 3D printing, is a game-changer for the field of manufacturing, enabling significant savings of cost, time and materials. In traditional manufacturing, parts are manufactured in large quantities at centralized factories, then shipped out to consumers.
Was it worthwhile? Where have the benefits of rooftop solar photovoltaic generation exceeded the cost?
We estimate the lifetime magnitude and distribution of the private and public benefits and costs of currently installed distributed solar PV systems in the United States. Using data for recently-installed systems, we estimate the balance of benefits and costs associated with installing a non-utility solar PV system today.
Decarbonizing intraregional freight systems with a focus on modal shift
[1] Rockström J, Gaffney O, Rogelj J, Meinshausen M, Nakicenovic N and Schellnhuber H J 2017 A roadmap for rapid decarbonization Science 355 1269–71 Crossref [2] IPCC 2014 Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change ed R K Pachauri and L A Meyer (Geneva: IPCC) Climate Change 2014: Synthesis Report 151 pp [3] Teter J, Cazzola P and Gül T 2017 The Future of Trucks (Paris: International Energy Agency)...
Getting Past the Hype About 3-D Printing
References1. R.A. D’Aveni, “3-D Printing Will Change the World,” Harvard Business Review 91, no. 3 (March 2013): 34. 2. T. Kellner, “World’s First Plant to Print Jet Engine Nozzles in Mass Production,” GE Reports, July 15, 2014, www.gereports.com; and M. LaMonica, “GE, the World’s Largest Manufacturer, Is on the Verge of Using 3-D Printing to Make Jet Parts,” n.d., www.technologyreview.com. 3. K. Marchese, J. Crane, and C. Haley, “3D Opportunity for the Supply Chain: Additive Manufacturing Delivers,” Sept.
Opinion: ICAO’s Emissions Plan Has Loopholes Big Enough For A380
"Opinion: ICAO’s Emissions Plan Has Loopholes Big Enough For An A380" is part of the new Aviation Week & Space Technology subscription, now available online and in our newly launched mobile app. Current Aviation Week & Space Technology magazine subscribers: online and mobile access are now included at no added charge to you. To read this full article, use your subscriber email to log in to your account (or contact us for assistance in updating your account).
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