This is the 10773rd most frequent Spanish word.
desaparecerán
"Will disappear."
Here, 'desaparecerán' is used to indicate a future event where problems will cease to exist.
Los problemas desaparecerán con el tiempo.
The problems will disappear with time.
In this sentence, 'desaparecerán' refers to the potential consequence of species vanishing due to neglect.
Si no cuidamos el planeta, muchas especies desaparecerán.
If we do not take care of the planet, many species will disappear.
This use of 'desaparecerán' describes the probable impact of technology on job availability in the future.