- Feb 2020
As you can see, having one fewer child still comes out looking like a solid way to reduce carbon emissions — but it’s absolutely nowhere near as effective as it first seemed. It no longer dwarfs the other options. On this model, instead of having one fewer kid, you can skip a couple of transatlantic flights and you’ll save the same amount of carbon. That seems like a way more manageable sacrifice if you’re a young person who longs to be a parent.
Even if I believed the highly optimistic predictions of very strong climate policy in the USA (which I don't), having one fewer child still reduces emissions each year more than twice as much as living car free or avoiding a trans-atlantic flight every year.
And they state it as "instead of having one fewer kid, you can skip a couple of transatlantic flights and you’ll save the same amount of carbon." ... but this requires each parent to forgo 2 transatlantic flights they would have taken every year for the rest of their life, if I understand correctly.