Slowing climate change will require a massive increase of renewable energy assets while reducing use of fossil fuels. And who wouldn't like to have a quiet, clean, electric car?

But renewable energy technologies from wind turbines to solar panels and rechargeable batteries to power your Tesla Roadster require large amounts of mined metals and minerals.

That's a problem because mining creates significant environmental impacts on land, and now, there's a concerted effort to open up vast areas of the ocean floor to mining for this purpose.

On this episode speak with journalist Ian Morse and MiningWatch Canada's research coordinator Catherine Coumans about the overarching implications of mining things like metallic nodules and vents on the sea floor to huge areas of Indonesia for nickel used in rechargeable batteries. Our guests also explain how recent improvements to recycling of existing mined metals could supplant the need for risky projects like deep sea mining.

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Episode artwork: an electric car charging station in South Korea by hssbb79, CC BY-SA 3.0.

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