concession
/kənˈsɛʃən/
noun
concessionnoun
/kənˈsɛʃən/уступка
the act of giving up something or agreeing to something in order to reach an agreement
  • Both sides had to make concessions before they could sign the agreement.
  • The government made a concession on the new tax law after public pressure.
From the text...if you want something for future generations, you're going to have to make some concessions because you can't keep doing it the way it is.