Water is the biggest limiting factor, trees need more water.

High speed trains when applicable, but there really isn’t a practical way of going to Australia other than flying.

F35 is guaranteed to be better than a “6th generation” Chinese plane and they can be upgraded anyway. And it’s actually very successful now with a very cheap per plane cost.

It’s more about sensors and communication, there’s no reason you can’t have f35 use drones and stuff. But the better plane will see and target the enemy first. And it can operate without GPS. In other words it’s better to have 3000 f35s flying missions plus a bunch of drones. Being able to deliver a lot of firepower first is a huge deal.

The problem is that when it gets warmer they’re more likely to release it instead of holding it in the soil. It’s easier to store carbon when it’s cold.