I think your timelines are a bit off, the article claims it’ll be gone in 2100. Your kids will be fine, regardless of your views on if it’s true or not.
From any major airport in the world you can probably get to Brisbane for $1000 USD return. Then Brisbane to Cairns is around $100 AUD return. You could win back the cost of your flights at the Cairns Casino, the best (worst) attraction in town!
It’s far away from most people and it’s not cheap, but if you want to do it, spend the rest of this year saving up and do it when Australia opens its borders.
Heating your house and eating meat contribute far more to your personal carbon footprint than flying, unless you fly much more than usual.