TEOTWAWKI 7 - Supervolcanoes

75,000 years ago, the human race was on the brink of
extinction.

The cause was the Toba supervolcanic eruption, which had plunged
the earth into a volcanic winter and killed all but a few
thousand remaining humans. This moment was the closest we have
come to extinction since our species began.

Even smaller volcanic eruptions have lead to such
cheerful-sounding phenomena as "The Year Without a
Summer". 

Now, the question has to be asked: could this happen again? And
how likely is it to occur during our lifetimes?

On this week's TEOTWAWKI special of Physical Attraction, we're
going to be talking about the threat from supervolcanic
eruptions.


How are you feeling about the countdown so far? Let us know over
on Twitter @physicspod, or via the email, physicspod@outlook.com