We are adding to the impressive list of SXSW Eco 2012 speakers and presenters everyday, and we're particularly excited about the latest group of Distinguished Speakers including Bryan Walsh, Thomas Brookes, Jean Brittingham and Bill McKibben. Read their bios and explore who else is coming to SXSW Eco in October by visiting sxsweco.com/speakers.

To keep up with SXSW Eco news and announcements visit us on sxsweco.com, Twitter, Facebook or Google+.

Don't miss out on all that we have planned for October. Register today and book your hotel now!

Photos: (on left) Bryan Walsh, (on right) Tom Brookes