Changes by 2050

Cities: will have expanded and space will be restricted to a minimum

Industry/ manufacturing: new recycling systems to optimize available materials and save natural resources

Shopping/ commerce: conventional shopping restricted to a few large malls, trade will be carried out electronically

Hospitals: special, zero gravity hospitals will have been constructed and place to orbit above the earth. 

Land: will be used to grow fuel crops rather than food.

Vehicles/transportation: Conventional vehicles will have become obsolete, new small vehicles and tele-transportation will have been introduced.

Homes/buildings: Homes will have gone off the grid, buildings will have been fitted with special tanks to collect rain wate

Biospheres/shields: Foundations for special biospheres will have been laid around existing buildings or outside the perimeter of doomed towns and neighborhoods. All inhabited areas will have been fitted with a special shield to protect them from harmful radiation.