There are ways to leverage your coal mines to be part of your national energy system, employing the miners and leaving the coal unburnt and in the ground. You are slow down under, but you will get there like it or not.
Will get there eventually, maybe.
Zero-emissions means no camp fires...no jet engines, no coal burning for heavy industry, not even one coal-fired power station...good luck to them trying to exist on wind and solar...using only them to turn H20 into Hydrogen and Oxygen.
The closest whole percentage no for the amount of global electricity generated by wind at last count is..........O...zero...0.04%.
Here's an idea...you first...China second, India third, Europe/Britain 4th, etc....with 1.2% bambuland last, just to make sure it all works before my world sends itself broke.