Green Car Congress

FEBRUARY 20, 2015

CIRES is a partnership of NOAA and the University of Colorado Boulder. If leak rates are too high, natural gas does not compare favorably with one alternative, coal, in terms of climate impact. Overall, the team found that methane leaking from gas equipment totaled about 1.1% Where leak rates are low, the comparison favors natural gas.

EPA 150

EPA Gas Arkansas Colorado 150

Green Car Congress

JULY 18, 2010

Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. For other areas, where PM2.5 Brinkman et al. Hannigan and Jana B.

Denver 170

Denver Ozone PHEV Colorado 170

Green Car Congress

FEBRUARY 14, 2014

Atmospheric tests covering the entire country indicate emissions around 50 percent more than EPA estimates ,” said lead author Adam Brandt at Stanford University. Modeling has shown climate benefits from coal to NG switching for power generation over all time periods (i.e., Resources. See SM for figure construction details.

Climate 247

Climate Transportation Fuel Coal 247

Green Car Congress

OCTOBER 30, 2017

A new study by a team from the University of Pennsylvania and MIT suggests it will be easier for cities to reduce CO 2 emissions coming from residential energy use rather than from local transportation. This reduction will happen mostly thanks to better building practices, not greater housing density.

Transportation 199

Transportation Cleveland CO2 Phoenix 199