This week, Gov. Gavin Newsom announced that the state plans to eliminate the sale of gas-powered cars by 2035 in order to keep cutting California's greenhouse gas emissions.

Many environmentalists say we need to move even faster — and take bolder steps to ban fracking in our state. So what does this all mean for our climate future? And is this ban a big deal?

Guest: Kevin Stark, KQED science reporter

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