emissions

The automakers face off versus a coalition of 17 state governments opposing a significant portion of the auto industry and rallying for greater emissions

The state's hydropower generating capacity is nearly half that of normal conditions, forcing California to rely on more carbon-intensive sources for a greater amount of its grid mix

Even though EVs use the friction brakes less, some data suggests they generate more brake dust—and the EU is looking to contain that.

Emissions Analytics performed chemical analysis of hundreds of new tires and now concludes tire-wear particulate emissions are 1,850 times greater than tailpipe particulate emissions.

Well-timed signals can have a significant impact on emissions—equivalent to the CO2 absorbed by a forest 3.3 times the size of Atlanta, according to Inrix.

Texas and 15 other states, along with ethanol groups, have challenged the EPA's emissions rules under the Biden administration

It's been a long time coming. Enforcement had been delayed after automaker lobbying, triggering a lawsuit from California.

Coal accounted for 40% of the overall increase in global CO2 emissions in 2021, according to the IEA—a factor affecting electric vehicles' overall impact.

Producers argue that the new rules exceed the EPA's authority because they effectively force automakers to produce electric cars

Environmental groups claim the EPA's proposed standards should do more to encourage deployment of electric trucks.

The Supreme Court made an unexpected decision to hear a case from the coal industry, challenging the EPA's authority to shift to less-polluting power generation sources.

Stricter standards on the U.S., Europe, and China could provide strong revenue for EV makers—especially Tesla.

It stopped buying state vehicles from GM in 2019, when the automaker sided with the Trump administration in a challenge to the state's right to set its own emissions rules.

A tire concept uses 70% sustainable materials—including carbon black derived from a process creating hydrogen gas from natural gas.

So much of the responsibility for CO2 reductions is falling on the auto industry. Should more of it rest on the oil industry?

The NHTSA under President Biden will resume the higher fine schedule for gas-guzzling fleets approved in 2016. Should they be applied retroactively?

Dementia is the latest health issue potentially tied to the fine particulate emissions produced by vehicle tailpipes.

The U.S. EPA is reportedly on the verge of revealing a plan for tougher annual efficiency increases that would eventually exceed Obama-era targets.

Another study confirms that electric vehicles are cleaner over their lifecycles than cars powered by internal combustion engines.

Tightening rules for plug-in hybrids by 2030 and an ell-electric new-car fleet are part of proposed rules in Europe—but 27 member nations will need to approve.