The question for the fourth episode of Ask POET comes from Scott Miller, who asks: "What is the ethanol industry doing to reduce its carbon footprint and the amount of water it takes to produce ethanol?"
To get the answer, I interviewed Erin Heupel, Director of Environment & Technology for POET. Erin talks about the carbon intensity and net energy gain of ethanol and the water it takes to produce ethanol. Here's episode four of Ask POET:
On the carbon intensity of current ethanol production, see http://bit.ly/etohco2
For ethanol's energy returned on energy invested (EROEI), see http://bit.ly/etoheroei
For POET's Ingreenuity initiative to improve the sustainability of ethanol production, visit http://www.ingreenuity.com
Ask POET is a monthly program on POET TV where we answer the public's questions about ethanol and the role that we, as the largest producer, play in that industry. If you'd like to ask a question for a future episode, leave a comment below or email your question to askpoet@poet.com.

