2080s (The 21st Century)

By this decade, every country was on nuclear fusion. Famines were limited to poor landlocked countries thanks to advancements in desalination. The 2nd iron curtain deteriorated not because of Russia's decline (though its population was still aging and the country still had internal problems) but because of the cooling down in tensions.

America
On August 18 2084, the supreme court ruled that sibling marriage was constitutional.

Europe
tensions eased between the 2 factions

Pacific
China, Japan, and Korea continued their economic descent, aging population, and people migrating to India.

India:
Although the country's birthrates declined to a shrinking level, immigration allowed the population to continue growing. Its society had also liberalized.

Middle East
Most people in the middle east either moved to Iraq or India (Afghanistan had strict border control) but a few moved to Europe.

Africa
Many arabs moved southward to economically sound countries such as Nigeria, South Sudan, Central African Republic, Ethiopia, and the DRC.