well, in my opinion our country in 50 years time will be like that :
no trees or parks because people will destroy it .
because on Earth will be too many people and there won`t be any place to live.
also , i suppose that the polution will be awful because in our days the polution is bad , so just imadjin how terriиду it will be . also there will be lots of cars and it is bad for polution too .
but i think that the science will have really big progress