It may take 1,000 years to "restore" the climate. (And that's before we ask "to where" ?)
Much better to look what you can do in 10. Better flood defences. Better water management. Managing and preventing soil erosion.
(All of which would be much easier if we hadn't generated 8 billion people all expecting more and more every Christmas.)
Don't worry I'll be dead soon. Someone else can pick it up.