[argiopetech]

I did the back of the napkin math below: https://news.ycombinator.com/item?id=42697255

Barring mistakes, it balances if we had avoided reducing the planet's vegetation by 20% since 1900. So much for that.

That's obviously not "the" solution, but it seems like reducing fuel burn while increasing forestation would benefit us beyond what is commonly expected.

[SketchySeaBeast]

Interesting math, so it is mathematically possible. Important to note, 1 billion hectares is just over the size of all of the United States.