Researchers have found that methane emissions from local natural gas distribution systems across the U.S. have decreased in the past 20 years.
The District of Columbia’s top environmental official will be taking a spin in a new car that’s powered by air.
Emissions from new vehicles are down a record 20 percent in the last five years, according to researchers at the University of Michigan Transportation Research Institute.
Saline-based Sensors Inc. announced Wednesday that England’s Emissions Analytics Ltd. has produced real-world fuel economy and emissions figures for dozens of leading car models using Semtech-DS, Sensors’ laboratory-grade emissions measurement system.
Will your new car get an A in fuel efficiency? A government proposal may add letter grades to showroom window stickers on new cars and trucks to reflect a vehicle’s overall fuel economy and greenhouse […]