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> far more exciting party balloons filled with hydrogen gas instead.

Far more exciting, of course, because the balloons will explode. My kind of party!

Only if you bring them near a flame.

Birthday party. Candles.

"One of the problems is that our helium supply comes as a byproduct of the oil and gas industry so as we switch to renewable energy sources the yearly supply will diminish even as demand increases."

Unlikely. It is not a byproduct of the oil industry. It is very specifically a byproduct of the gas industry. NG is the least carbon intensive fossil fuel so it's likely to lag. Further, you can separate and reinject.

One question that chart brings to mind though is what is the loss/recapture/reuse rate for those various uses? Many clearly involve atmospheric venting so they're just a loss, but I'd imagine cryogenics at least must often have at least the potential for reuse of parts of it.

Party balloons are a 100% loss though, so even if they're only a lesser fraction of that 13% "Other" category (7%? 4%?) every bit that goes there ends up vented so I could see that adding up over time vs others.

Ideally proper pricing would help take care of this but that's pretty hard for something like helium.