emissions

The annual efficiency report from the IEA reveals a number of factors that have slowed worldwide energy efficiency improvement.

With all loopholes banished, the new rules will reduce CO2, claimed the EPA Administrator in a recent Detroit address.

Passenger SUVs are to blame for growth in CO2 emissions, an upcoming paper finds, while the passenger-car sector has made CO2 reductions.

How have emissions due to driving changed, as opposed to the emissions from power generation? An interactive map helps round it up.

Recently released census data shows that work commute times continued to increase in 2018, reaching a record 27 minutes each way.

About 98,000 VW, Audi, Bentley, and Porsche vehicles allegedly game federal emissions tests used for fuel economy calculations.

The findings of a German court could reopen the Volkswagen diesel scandal.

Automakers frustrated with the lack of progress toward federal fuel economy and emissions standards made a deal with California.

The Obama-era Clean Power Plan has been set aside by the U.S. EPA, and now states are suing the agency over the enforcement of carbon dioxide emissions.

Porsche is helping buyers of its vehicles purchase enough annual carbon offsets to correspond to their model.

A proposal in California could impose an emissions-check system for commercial big rigs much like that required of passenger vehicles.

Ford, Volkswagen, BMW, and Honda have presented a plan with California, to raise fuel economy toward a target of 50 mpg with a single national fleet.

A proposal aims to target 100 percent renewable energy by 2050, but doesn't take as broad of a focus on other aspects of the Green New Deal.

Carbon dioxide emissions in the U.S. will drop 2.2 percent in 2019, the EIA predicts. That is largely due to the retirement of coal plants.

The EPA has reportedly once again delayed its plans to reveal a plan to freeze federal fuel economy and emissions standards at 2020 levels.

A wide range of Hyundai and Kia vehicles, starting with the 2020 Sonata, will be soon be getting engines with a next-generation valve system.

In the aftermath of the diesel scandal, the VW Group explains the new European WLTP standards, which include various tailpipe tests.

Europeans aren't buying as many electric cars as regulators would like them to buy; the popularity of crossovers and SUV is also an issue.

The top official at the EPA overseeing tailpipe emissions has resigned, prior to any resolution over proposed emissions and fuel economy rules.

On the way to its plan to massively cut carbon emissions, Airbus is reportedly looking at hybrid tech for the replacement for its A320neo.