How eco-friendly are electric vehicles? It all depends on the battery

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Electric vehicles don't emit any pollution, but that doesn't mean they aren't a potential environmental hazard. It all comes down to how the battery is manufactured and dismantled.

By 2035, sales of all new passenger vehicles in California must be zero-emission. We dove deep into what the state must do to cross the finish line.

It's a growing concern, especially in California, which is home to about 40% of the electric vehicles on the road in the United States.To get ahead of the battery disposal problem, two years ago the California legislature set up an advisory panel to develop regulations on managing batteries from zero-emission vehicles.

"We check the capacity, the voltage and the load. We see how much load they can hold and if they are reusable, we put it back in the car. If they're not, then we recycle it," said Rasti, who operates Hybrid Battery Solution out of a small room in San Leandro.George Kershner, executive director of PRBA - The Rechargeable Battery Association, said there is a lot of research going into making these batteries recyclable or reusable.

"It's a very successful program, but we all pay a deposit at the beginning. And when you turn that battery in, the deposit comes back. And that's how we manage those batteries and get them recycled. Right now, for electric batteries, we don't have any kind of program in place," explained Kendall.When the vehicle is under warranty, the vehicle manufacturer would be responsible for the battery.

There's also concern about mining for minerals like cobalt, copper, manganese and nickel that are used in car batteries on the ocean floor.The Monterey Bay Aquarium is co-sponsoring legislation to prohibit leases for mining within three miles of the California coast. It's hoping that inspires bans further into the deep ocean.

Steve Haddock, a marine biologist at the Monterey Bay Aquarium Research Institute, is worried about the impact of seabed mining on the water column, the area of water below the surface and the bottom of the ocean.

 

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