article thumbnail

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

Green Car Congress

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 A detailed discussion of the issues related to the comparison of the energy intensities of flying and driving is presented in a recent report.)

2019 313
article thumbnail

EPA annual inventory shows US GHG up 3.1% from 2017-2018

Green Car Congress

This increase was largely driven by an increase in emissions from fossil fuel combustion, which was a result of multiple factors, including more electricity use greater due to greater heating and cooling needs due to a colder winter and hotter summer in 2018 in comparison to 2017. Source: EPA. >.

2018 243
article thumbnail

IEA Bioenergy Report Finds Improvements in Corn Ethanol Production Could Lead to Further 25% Reduction in Lifecycle GHG Emissions by 2015 Compared to 2005

Green Car Congress

By 2015, the report finds, corn ethanol could show greenhouse gas emissions of 40,068 gCO 2 eq/GJ (HHV)—a 25% reduction from the 2005 level of 53,466 gCO 2 eq/GJ and a 37% reduction from the 1995 level of 63,977 gCO 2 eq/GJ. By comparison, gasoline shows full lifecycle GHG emissions of 88,764 gCO 2 eq/GJ in 2015, up 2.5%

2005 150
article thumbnail

Study: US counties with higher PM2.5 concentrations have more stroke deaths

Green Car Congress

Analyzing health data and pollution monitoring information from 1,561 counties across the United States between 2005 and 2010, researchers found the yearly average for fine air pollution ranged from 7.2 In a nationwide study, counties with higher concentration of PM 2.5 average 11.75) micrograms per cubic meter. —Longjian Liu.

Pollution 207
article thumbnail

GFEI report finds improvements in average new LDV fuel economy lagging pace required to cut 50% fuel use for new cars worldwide by 2030; policy focus should be on emerging markets

Green Car Congress

per year from 2005 when the average was 8.0 per year between 2005 and 2008. Fuel economy improvement (reflected as a reduction in g CO 2 /km) has been continuous and significant between 2005 and 2011 for most countries. average annual improvement rate between 2005 and 2011. l/100 km (32.7 l/100 km (29.4 Source: GFEI.

article thumbnail

ANSYS and Cray set new supercomputer simulation record; 4x last record

Green Car Congress

By comparison, said the partners, few software packages achieve greater than 75% efficiency approaching this scale. The growth in computing power over the last decade has been remarkable, given that in 2005 the most sophisticated simulations were being performed on a maximum of 512 cores.

2005 150
article thumbnail

UMTRI study finds US diesel vehicles generally have lower total cost of ownership than gasoline vehicles

Green Car Congress

The study — Total Cost of Ownership: A Gas Versus Diesel Comparison —was conducted for Robert Bosch LLC; the results were released at the 2013 Alternative Clean Transportation Expo in Washington DC. Highlights from the diesel-gasoline comparisons include: Total Cost of Ownership. —“Total Cost of Ownership”.

Cost Of 262