limit population growth where it is exploding
How do you propose to do this? Genuinely interested in the answer, as this is probably the most practical if we can figure it out. Especially considering that nations retain sovereignty over their own policies, what's in it for them? They would lose economic growth.
limit mass migration to countries with high per capita emissions
Again, can you clarify? Are you going to tell people they must remain in third-world undeveloped poverty? That's how you get wars.
ask people to forgo affordable energy
Again, good luck. Most people aren't amenable to the idea of returning to a stone age.
Africa still has yet to industrialize, but it's coming, and with it a huge population boom. It would be a massive challenge to stop this, especially since it would likely economically cripple an already poverty-stricken continent and prevent or seriously inhibit economic growth. They are arguably the biggest concern here; not sure what we can do to stop it. Much of what you're saying seems premised on the "I'm-king-for-a-day" way of thinking.