With devastating hurricanes, refugee crisis and the real possibility of nuclear war, it can sometimes feel like the end is near.
But what are the biggest threats to humanity and is there anything we can do to stop them?
Experts all over the world from the Global Challenges Foundation in Stockholm and the Centre for the Study of Existential Risk at the University of Cambridge consider this question yearly using scientific research.
Some risks lay millions of years into the future like gamma-ray burst caused by a star explosion which would destroy our ozone layer.
Or even the over-expansion or collapse of the entire universe.
Closer to home we have our sun which will eventually become a red giant as it ages and engulf the entire planet.
But even that isn't for another 5 billion years.
More imminent is an asteroid large enough to create a global catastrophe which is estimated to occur every 120,000 years.
While none are currently expected to hit Earth soon, existing data is incomplete with a worldwide effort underway to search the skies.
Should it happen it could create a global cooling event like the ice age.
