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Without massive change at government and corporate levels, climate change is inevitable.

Meanwhile, global food-supply chains are in flux.

And despite all this, celebrity chefDavid Changis feeling optimistic.

Maybe I have a concussion or something, he jokes.

Chang also marvels at lab-grown meat and fish and wonders about growing something like geoduck in a lab.

An expert responds: you could go even further back and do its ancestor, the dinosaur.

So either this is a six-episode docuseries or a horror-movie prequel.The Next Thing You Eatpremieres October 21 onHulu.

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