Russia and Canada will gain more human habitable land from global warming.

So why did you say 'No, you can't beat Ukraine'?

When clearly at least one other country has even more black soil?

Which country? The depth of black soil in other places is incomparable with Ukraine's. It's like comparing the marianas trench to the Caribbean. The total landmass might be lower but the total volume in Ukraine is leagues larger.

>Chernozem layer thickness may vary widely, from several centimetres up to 1.5 metres (60 inches) in Ukraine

> The depth of black soil in other places is incomparable with Ukraine's.

How do you know it's incomparable?

That statement would still hold for other countries with layer thicknesses in the 1m to 1.5m range. Which seems entirely comparable considering the area covered is multiple times greater.