According to a manuscript (publicly available for the 1st time) by Isaac Newton, we have at least a good 53 years to go before its curtain call for the human race.
[quote] In one manuscript from the early 1700s, Newton used the cryptic Book of Daniel to calculate the date for the apocalypse, reaching the conclusion that the world would end no earlier than 2060.
“It may end later, but I see no reason for its ending sooner,” Newton wrote. However, he added, “This I mention not to assert when the time of the end shall be, but to put a stop to the rash conjectures of fanciful men who are frequently predicting the time of the end, and by doing so bring the sacred prophesies into discredit as often as their predictions fail.” [unquote]
Seeing that our time is finite, what should we, as a species, be doing right now?
Days Of Our Life 
I think we should take it as a bit more serious issue than our daily life’s problems and try to find out a way to survive, atleast we should try to do so for our forthcoming generation.