Physicist Stephen Hawking has warned that the human race will cease to exist on Earth after humans turn it into a giant fireball by 2600 year....................Whew, OK I hope I have enough time to get things in order.
It's been observed to "burp" a couple times about a 150 years ago, so if the astrophysicists are correct, and if it goes supernova, it will send a GRB that will hit the Earth, temporarily disrupting air molecules filter out the dangerous UV rays from the Sun, if it hasn't already.
OTOH, the Earth is doomed anyway, once the Sun goes into its Red Giant phase, in probably around 5 billion years.