???

it works again.

many free lunches...

this is a society with many free lunches. you have to be business owner or a big corp to get the free lunches. the free lunches come from the employees who is working for low wages.  

co2 solution...

a massive solution for co2 is warm water in cold region. it promotes plant growth thus removing co2 from air. russia,canada,europe...area is huge.

more food...

sending warm water to the north has another benefit. more land can produce food for population.