According to the best climate models: Mexico, most of the US, Spain, Italy are completely fucked in terms of ariable land. Alaska, Ethiopia and parts of India are projected to be the only real benefactors. When food and water run out, Mad Max will be a comparative fairy tale.

Here's some quality videos by actual climate scientists (trigger warning: science):

https://youtu.be/ntOgBMgENTU

https://youtu.be/8iEj76iX-xE

https://youtu.be/UOm2t3QMR6k

https://youtu.be/iOztwk6bjjU