
Achieving near-zero greenhouse gas emissions from transportation by 2050 presents a significant challenge for public policy. Transportation systems require energy to move people and goods, and currently rely on fossil carbon fuels for more than 90% of their energy needs, a trend that has persisted since at least the middle of the twentieth century (Davis…

Wetlands provide a range of services that benefit humans. Estimating the total economic value of wetlands requires accounting for all of these services, even though most are not monetized through markets. Wetland values fall under four main categories (Boyer and Polasky 2004): (1) direct use values such as recreation and provision of food or fuel;…

Ever since they escaped Arkansas aquatic farms in the 1970’s, Asian carp have created headaches for policymakers and boaters alike. Several species of fish are collectively known in the United States as Asian carp. Common carp resemble bloated goldfish and range from a couple of pounds to 40lbs. These bottom-feeders are what most Americans recognize…

The electricity generation sector is in flux. Demand is flat, cheap natural gas is shuffling the generation stack. NIMBY-ism and policy uncertainty make it difficult to build new transmission and generation capacity. At the same time, there are deep structural changes afflicting the sector: decentralization, decarbonization, and digitization are interacting to overturn existing market structures…

The international policy community achieved a major milestone in 2015 with the passage of the Paris Agreement. Since that time, nearly 200 countries have signed or ratified the treaty, which aims to significantly reduce emissions of heat-trapping greenhouse gases over the next several decades. At the heart of the Agreement is Article 2.1. A number…

Low-carbon investments are necessary for driving the energy system transformation that is called for by both the Paris Agreement and Sustainable Development Goals. Improving understanding of the scale and nature of these investments under diverging technology and policy futures is therefore of great importance to decision makers. Here, using six global modelling frameworks, we show…

This report summarizes recent research using agent-based computational economic modeling (ACE) in the electricity industry and illustrates how ACE can be used to investigate the dynamic response of a traditional electric grid in response to increased penetration of distributed solar generation. Using a hypothetical electric grid, the ACE model describes the dynamic behavior of four…

U.S. oil dependence has been an important topic at the nexus of energy policy, economic, policy and national security since the early 1970s (Deutch and Schlesinger 2006). Oil dependence typically refers to the percentage of domestic oil consumption that is imported.¹ As shown in Figure 1, the percentage of U.S. petroleum consumption supplied by foreign…

Since the mid-1970s, the federal government has produced and published information on the fuel economy of new passenger cars and light trucks as required by statute (EPA, 2017a). Beginning in 1999, the Department of Energy (DOE) and Oak Ridge National Laboratory (ORNL) established a website to more efficiently provide fuel economy information to the public.…

In this study we investigate the impacts of fuel economy on income quintiles using data from Consumer Expenditures Surveys (CES) from 1980 to 2014. Decomposition analyses of household expenditures on vehicles and fuel quantify the factors causing changes for each income group over the past quarter century. Although the CES data allow us to separate…