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each transaction has the carbon emissions of a transatlantic flight
One single transaction? Is that correct?
Fyoosh-
It's complicated. The power usage doesn't stay constant and it depends on hash rate and other things. I cant find a source for it but...
Forbes is saying here that the average carbon footprint of a bitcoin transaction is 369.49 kgCO2eq.
A return from London to New York is quoted at 986kg here. So yes it's within the same ball park definitely.
I also just came across this claiming that one bitcoin transaction produces the same e-waste as binning two iphones.So if you must invest in bitcoin do it through Paypal where it's just a number on your account and you're not in danger of locking yourself out of your wallet. Ethereum is also similarly terrible.
Crunty
There are benefits to having your crypto in the care of a custody provider like Paypal. You cant lose it by accident. When you say getting an understanding of how it works you mean transacting and each transaction has the carbon emissions of a transatlantic flight (fuck bitcoin).