Surprise findings have revealed that Australia's cars are getting less fuel efficient. This is bad news for the hip-pockets of motorists - and for the climate.
This shocking figure comes from our back-of-the-envelope calculations looking at the effect of forcing more efficient engines on the Australian market.
Researchers have found a way to evaluate how energy-efficient electric vehicles are, and compare the sizes and costs of batteries for different models.
The private car is the default transport option for many families. This reduces physical activity and increases greenhouse gas emissions, with unhealthy results for their children and the environment.
The road to an electric future needs to be paved with more than good intentions.
The Australian market is awash with highly polluting cars. But there are a couple of key resources to help you find the best vehicle that fits your needs.
Diesel engines have been demonised for their emissions but the technology has already cleaned up its act.
By boosting the demand for energy from the grid, electric cars could help create an incentive for more renewable energy investment, while smoothing over issues with supply and demand.
The Australian government is considering a cap on car emissions, and the savings in fuel and health costs mean there's no reason to delay.
Australia needs stronger policy aimed at curbing air pollution, but the options currently on the table fall short. For now, we could all aim to drive less and turn off the engine when the car is idle.
Fallout from the Volkswagen case shows how scandals can give virtuous organisations a competitive edge and help industries evolve.
Total emissions are coming down. But many people still live in cities with poor air quality.
While action on air pollution is welcome, there may be better ways to cut car emissions.
Carbon standards for cars are the cheapest way to cut emissions, and will save drivers money.
The ACCC has launched proceedings against VW for allegedly misleading consumers. But consumers won't be directly compensated from the case.
The scandal that rocked the automotive industry is far from over.
Computers control much of an engine's performance these days. And it's surprisingly easy to tweak the software to bypass emissions controls, as done by Volkswagen.
Australia is literally years behind European and US vehicle emissions standards, allowing car-makers to sell more polluting cars.
It's likely that many people knew Volkswagen was cheating on emissions tests, including the engineers who built the 'defeat device'. But why did no-one at the car maker blow the whistle?
If some good can come out of the Volkswagen scandal, it's that public will be more clued up about air pollution from cars.