My watch is from: http://www.tokyoflash.com/
Michael Stevens on Twitter: https://twitter.com/tweetsauce
Music by Jake Chudnow: https://soundcloud.com/jakechudnow
Vsauce2: http://www.youtube.com/Vsauce2
Vsauce3: http://www.youtube.com/Vsauce3
Falling into lava video: http://youtu.be/kq7DDk8eLs8
Flowing lava video: https://www.youtube.com/watch?v=aAymSMrOlOQ
What death by lava would actually be like: http://www.wired.com/wiredscience/2011/12/the-right-and-wrong-way-to-die-when-you-fall-into-lava/
Where you can find a lava lake: http://en.wikipedia.org/wiki/Lava_lake
How percentage of people are still alive? http://what-if.xkcd.com/27/
Hypothermia: http://en.wikipedia.org/wiki/Hypothermia
Mariana Trench: http://en.wikipedia.org/wiki/Mariana_trench
AMAZING xkcd chart showing depths to scale (click for larger pic): http://xkcd.com/1040/
Influenza: http://en.wikipedia.org/wiki/Influenza
Black Death: http://en.wikipedia.org/wiki/Black_Death
Malaria total fatalities: http://www.aaas.org/international/africa/malaria/gwadz.html
Global Peace Index: http://www.visionofhumanity.org/gpi-data/
Cabot Cove murder rate: http://www.dailymail.co.uk/news/article-2191990/Murder-capital-world-Quiet-seaside-town-Cabot-Cove-named-dangerous-place-Earth.html
Most dangerous cities by murder rate: http://www.businessinsider.com/most-dangerous-cities-in-the-world-2012-10?op=1
Dirtiest cities: http://www.popsci.com/environment/gallery/2008-06/worlds-dirtiest-cities
Lake Karachay: http://www.dailymail.co.uk/sciencetech/article-2215023/Is-polluted-place-Earth-The-Russian-lake-hour-beach-kill-you.html
Chernobyl as haven for wildlife: http://www.wired.com/magazine/2011/04/ff_chernobyl/all/