extant - EKS-TANT - existing, living, surviving, remaining
Example: "There is a great controversy over whether or not polar bears will still be extant after the next few decades of global changes."
As a starter: and as a former teacher in English, I hope to add to reader's vocabulary by presenting a word a day in simple terms that anyone can understand - from current use in publications, radio,TV, etc. Remember: use a new word three times in a day and it's yours forever!