![PopTech Audio: PopCasts show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/053/095/small/poptech-audio-popcasts.jpg)
Summary: <p>2009 PopTech Fellow Jason Aramburu launched <a href="http://www.re-char.com/">re:char</a> in 2005 to develop low-cost technologies that fight climate change while improving the quality of degraded soils. re:char’s systems convert agricultural waste into renewable fuel and into biochar, sequestering atmospheric carbon and improving soil quality.</p>