Fix the Planet newsletter: The race to replace meat

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A meal featuring a nugget made from lab-grown chicken meat

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Welcome to this week’s Fix the Planet, the weekly climate change newsletter that reminds you there are reasons for hope in science and technology around the world. To receive this free, monthly newsletter in your inbox, sign up here.

I don’t eat meat anymore, but I used to rely on it as my main source of protein. Many other people still do. But meat is also responsible for roughly twice the global greenhouse gas emissions as plant-based food and more nitrogen pollution than Earth can handle, as well as being a leading driver of illegal deforestation.

So where else can we get our protein, without livestock’s environmental hangover? A host of alternative proteins are competing, from plant-based ones (currently mostly wheat, soy or…

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