The Marin Agricultural Land Trust has selected Thane Kreiner, an entrepreneur and executive from Sebastopol, as its new C.E.O. His hiring marks a new chapter for MALT, as its mission is increasingly focused on sustainability, innovation and stewardship.

“I’m really excited about working with the community to experiment, adopt and model best practices and transform our food systems from being a net source of greenhouse gas emissions to carbon negative, and doing so in a…