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After years of being derided as a joke by car manufacturers and the public, interest in electric vehicles has increased sharply as governments around the world move to .

We have seen a tremendous rise in availability, , where Tesla is giving established brands a run for their money. Electric cars are likely to penetrate the rest of the market quickly too. Prices should be on par with conventional cars .

Electric cars are praised as the answer to questions of . But the overall sustainability of electric vehicles is far from clear. On closer examination, our entire transport paradigm may need to be rethought.

Compared with combustion engines, electric transport has obvious advantages for emissions and human health. Transport is responsible for around . This is expected to double by 2050.

Motor vehicles also put a burden on society, especially in urban environments where they are chiefly responsible for . Avoiding these issues is why electric vehicles are considered a in cleaning up the transport sector. However, electric cars come with problems of their own.

Dirt in the supply chain

For one, electric vehicles have a concerning supply chain. Cobalt, a key component of the lithium-ion batteries in electric cars, is linked to reports of . The nickel used in those same batteries is from the ground. And there are environmental concerns and land use conflicts connected with lithium mining in countries like and .

The elements used in battery production are . This makes it to electrify all of the world's transport with current battery technology. Meanwhile, there is still no environmentally safe way of .

While electric cars produce no exhaust, there is concern about . Electric cars are often heavier than conventional cars, and . The large torque of electric vehicles further adds to the fine dust problem, as it causes greater tyre wear and dispersion of dust particles.

Different motor, same problem

Electric vehicles share many other issues with conventional cars too. Both require roads, parking areas and other infrastructure, which is especially a problem in cities. Roads divide communities and make difficult for those without cars.

A shift in people's reliance on combustion cars to electric cars also does little to address sedentary urban lifestyles, as it perpetuates our .

Other problems relate to congestion. In Australia, the avoidable social cost of traffic congestion in 2015 was estimated at . This is expected to increase by 2% every year until 2030. Given trends in population growth and urbanisation and , electric cars – despite obvious advantages over fossil fuels – are unlikely to solve urban mobility and infrastructure-related problems.

Technology or regulation may solve these technical and environmental headaches. Improvements in recycling, innovation, and the greening of battery factories can go a long way towards reducing the impacts of battery production. Certification schemes, such as the one proposed in , could help deliver low-impact battery value chains and avoid conflict minerals and human rights violations in the industry.

A new transport paradigm

Yet, while climate change concerns alone seem to warrant a speedy transition towards electric mobility, it may prove to be merely a transition technology. Electric cars will do little for urban mobility and liveability in the years to come. Established car makers such as Porsche are working on new modes of transportation, especially for congested and growing markets such as China.

Nevertheless, their vision is still one of – relying on electric cars coupled with smart traffic guidance systems to avoid urban road congestion. Instead of having fewer cars, , car makers continue to promote individualised transport, albeit a greener version.

With a growing population, a paradigm shift in transport may be needed – one that looks to urban design to solve transportation problems.

In Copenhagen, for example, in the city's centre, which is primed to be car-free within the next ten years. Many other cities, , are also on their way to being free of cars.

Experts are already devising new ways to design cities. They combine efficient public transport, as found in , with principles of walkability, as seen in . They feature mixed-use, mixed-income and transit-oriented developments, as seen in places like .

These developments don't just address transport-related environmental problems. They enhance liveability by . They reduce the cost of living by cutting commuting cost and time. They deliver , thanks to reduced pollution and more active lifestyles. They , by fostering human interaction in urban streetscapes, and help to . And of course, they improve by reducing the loss of productivity caused by congestion.

Electric cars are a quick-to-deploy technology fix that helps tackle climate change and improve urban air quality – at least to a point. But the sustainability endgame is to eliminate many of our daily travel needs altogether through smart design, while improving the parts of our lives we lost sight of during our decades-long dependence on cars.