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Hey all,

I apologise if this is in the wrong subforum, I hadn't the faintest idea which to use.

I was just reading something on Geo-Engineering (basically localised terraforming) on the BBC and the Sahara and Ethiopia kind of jumped out at me as places of interest.

Assuming a sort of 'Mega-Rome' that ends on the Vistula/Carpathians/Dniester line, and controls the red sea, modern Yemen and Somaliland (the latter just so this would in their interests - details are unimportant).

1) Could such a state perform Geo-Engineering on a scale to drastically alter the Sahara?

2) What would the direct effects be?

3) Could the Roman Empire of this timeline adapt and apply Geo-Engineering to stabilise their empire to prevent droughts, floods and famines?
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