Remove Comparison Remove Light Remove Statistics Remove Universal
article thumbnail

Actual fuel economy of cars and light trucks: 1966-2019

Green Car Congress

Specifically, this study examines actual fuel economy of cars and light trucks (pickup trucks, SUVs, and vans) from 1966 through 2019. (My Annual statistics from the U.S. In comparison, the change between 2008 and 2019 (from 4.59 million cars and light trucks sold in the United States in 2019 accounted for only 6.7%

article thumbnail

Actual fuel economy of cars and light trucks: 1966-2017

Green Car Congress

Specifically, this study examines actual fuel economy of cars and light trucks (pickup trucks, SUVs, and vans) from 1966 through 2017. Annual statistics from the U.S. In comparison, the change between 2008 and 2017 (from 4.59 million cars and light trucks sold in the United States in 2017 accounted for only 6.9%

article thumbnail

Those who flew in 2020 had twice the environmental impact of those in 2019

Green Car Congress

Until recently, the energy intensity of domestic flying was higher than the energy intensity of driving light-duty vehicles (cars and light trucks). However, the energy intensity of flying became lower than that of long-wheel-base light-duty vehicles starting in 1995, and of short-wheel-base light-duty vehicles starting in 2005. (A

2019 313
article thumbnail

Study comparing crash risk of EU and US vehicles indicates differences in performance

Green Car Congress

To compare risks, the researchers analysed a number of US and EU crash data sources using three statistical approaches to “triangulate” evidence regarding differences in crash and injury risk. US ratio of pedestrian fatalities in dark vs. light is estimated to be lower than in the EU. —Flannagan et al.

Vehicles 150
article thumbnail

Study finds some improved cookstoves may emit more black carbon pollution than traditional mud cookstoves

Green Car Congress

The first real-world, head-to-head comparison of improved cookstoves (ICs) and traditional mud stoves has found that some ICs may at times emit more of the black carbon particles that are linked to serious health and environmental concerns than traditional mud stoves or open-cook fires. —Kar et al.

Pollution 231
article thumbnail

Study finds clear trend of increasing NOx with higher biodiesel blends with CARB diesel; NOx neutrality achieved by blending in renewable or GTL diesel

Green Car Congress

Among the findings were: The average NO emissions were higher at a statistically significant level for the B20 and higher biodiesel blends compared to the CARB diesel for all the test cycle/engine combinations, with the exception of the animal-based biodiesel on the UDDS cycle for the 2006 Cummins engine. Credit: ACS, Hajbabaei et al.

Diesel 290
article thumbnail

DOE, BOEMRE and NOAA awarding nearly $5M for projects to advance ocean renewable energy

Green Car Congress

Parametrix (Auburn, Washington) will apply advanced probabilistic statistical methods to integrate oceanographic, ecological, human use data, stakeholder input, and cumulative impacts for the purpose of evaluating ocean renewable energy siting proposals. Approximate award amount: $745,000 (over two years); Funding agencies: BOEMRE, DOE, NOAA.