Please capitalize where necessary: the well-being of our society depends on sensibly embracing these advances and managing the risks rather than banning them.
A: The well-being of our society depends on sensibly embracing these advances and managing the risks rather than banning them.

Please capitalize where necessary: while there is a decline in the arctic ice there is an increase in the antarctic ice.
A: While there is a decline in the Arctic ice there is an increase in the Antarctic ice.

Please capitalize where necessary: eat good amounts of fresh fruit and vegetables, seeds and/or nuts, and fish (especially fatty fish).
A: Eat good amounts of fresh fruit and vegetables, seeds and/or nuts, and fish (especially fatty fish).

Please capitalize where necessary: apartments in dubrovnik, dubrovnik air conditioned accommodation in dubrovnik, 50 meters from the center of town. apartments in center, with excellent sea view.
A:
Apartments in Dubrovnik, Dubrovnik Air conditioned accommodation in Dubrovnik, 50 meters from the center of town. Apartments in center, with excellent sea view.