[dntrkv]

Where did you get that 60% figure from? The EPA gives very different numbers.

http://www3.epa.gov/climatechange/ghgemissions/gases/co2.htm...

http://www3.epa.gov/climatechange/ghgemissions/gases/ch4.htm...

[dmix]

I originally heard it in the "Cowspiracy" documentary".

UN and IMF say it's around 18-51%:

https://youtu.be/KpmTiHjUEBU?t=3m27s